
SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

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I have the Miele complete or brilliant or something like that. It’s like brown matte with electric brush and electric control handle. It was like $1,500 in 2020 but had a 10-year warranty and was absolutely worth it. The bags and filters don’t get used up super frequently so it’s not a huge ongoing financial commitment.
With the Miele C3, the most frustrating thing is the top of the metal electric wand - it has a plastic rim that somehow breaks. It’s extremely common. I bought a $1500 C3 Brilliant that this happened to within a year or so, which really pissed me off. So, I bought a Sebo D4 based on reviews and techs praising the bullet-proof from head to toe with quality. I absolutely hated it. I sold I within 3 months, and tried the E3. Again, same story. I decided that the Miele C3’s benefits outweighed those of the D4 and E3, so I kept my Brilliant. The lesson I learned is that there isn’t a perfect vacuum. You can spend $4,000 on a Rainbow or Hyla and have the same issues, very easily. Why? It’s just the nature of mass-produced products. There will always be a set of drawbacks / cons you have to accept as part of the package deal. The better question is, which set of drawbacks are you more comfortable with? For me, I valued cleaning performance, comfort, ease-of-use, filtration, wanted the best-the-best that had each of those things at industry-leading levels, the number 1, and so that was Miele C3. I can say I have owned it for 5 years now, going on 6, and used it every single day for an hour for the first 3 years. No mechanical issues that have affected performance or overall function. The top of the wand is a cosmetic issue, and will not prevent the handle from staying locked into the wand. The SEB 236 has a recline lever inside of it that tends to quit working so well after some time, but again, that isn’t a big deal to me, and is the C3 is still worth owning many times over despite that. Those are really the only two flaws I can find. I have found flaws and drawbacks with every single machine I’ve owned, and I’ve owned/ repaired many of them from all price points. Overall, they really are incredibly well engineered, but Miele places priority on the motor unit, critical functions, and tolerances, and that’s where you find the Miele-level precision. They are simply tools at the end of the day, useful machines. There is one or maybe two things I’d change, but overall, I can’t find one with more power, a better power nozzle, better filtration, and is easier to use, and all of that in one package.
S8s are super, super easy to repair. What broke? The C3 is still available in some stores, even from Miele directly. I tried many other vacs and couldn’t find one that had the power and comfort and the S8/C3. The Guard L1 models are slightly less powerful, but still very good vacs.
Alternatively, the Sebo E3 is probably the closest thing. It doesn’t have as much power, and it isn’t available with HEPA-13 (or HEPA at all), nor is it as comfortable to use but they are very durable and well-engineered. People that don’t like them tend to not like them because of the hose, which is also a common complaint with the D4. Overall, the C3 is significantly more comfortable to use, more power, superior filtration, more aggressive carpet performance, more suitable for residential applications. If it is the motor in your S8 that died, the motors can be replaced in 2 - 5 mins. Very easy, not expensive. $130!USD is what I see that listed at.
It’s also important to differentiate between types of HEPA. Miele’s HEPA is H13+ and almost H14. It’s very rare to find H13 in vacuum’s, as most are H11 if they even have HEPA. Rainbows also utilize H13, but aren’t the easiest bags to use if used frequently. I would definitely get a Miele Complete C3, Complete C3, Guard M1 or L1 AllFloors, one with the Parquet Twister floor-head. It significantly better than the AllTeq and FiberTeq heads, and you can get an extra-wide version of it. For rug(s), the TurboTeQ head is sufficient for low pile area rugs.
Miele Complete C3 canister, or a Sebo canister. Both are extremely well engineered. Sebo wands are more durable, but the Miele overlap has the most power, best filtration, and are known for lasting for 10 - 20 years (depending on use rate). It’s also a lot easier to use overall, lots of little things that add up. Sebo’s are commercial grade, more utilitarian, simpler, designed to be used for extended periods every day and still hold up for many, many years; but they come with some traded off drawbacks. I think the Miele canisters are the best choice for residential level cleaning (maybe twice per week for 20-30 mins each time), while the Sebo models are better for commercial level use - using it every day for 45 mins - 1+ hr). Canisters tend to be better for use floors, but both Sebo and Miele sell canisters that are exceptionally effective on carpet - rivaling premium uprights. Get the upgraded hardfloor tool with either brand you go with Sebo Premium Parquet or the Miele Parquet Twister floor head. The Miele version is a lot easier to whip around, but both are premium.
The lightest-weight upright vacs don’t do the best job, but canisters can be exceptionally effective and are the traditional choice for those that want an easy-to-push vac, have back problems, etc. They’re very handy. I used to hate using them but now they’re my preferred vac. They get under furniture, much easier to use attachments with, clean car out with, and they’re a lot better on hard floors. Miele and Sebo are the best canisters. Out of those, I recommend Miele for residential applications - specific models, though. C3 mainly, Guard L1 Electro. Either with the Parquet Twister floor head. The C3 is the best Miele, and has recently been discontinued so get one while you can. Sebo canisters are more utilitarian, simpler, slightly lower performance, but the wands are a little more durable. Still, I choose the Miele for its higher power, comfort features, and excellent filtration.
It was a Miele C3. I can vacuum my house the fastest with it than I can with any of my uprights or stick vacs. Ironic.
A bagged sealed system Miele HEPA is H13+ is the best filtering vacuum available. Ordinary vacuums use H10 or H11 HEPA, and are not fully sealed. Many “sealed system” vacuums are not actually sealed or don’t maintain their seals for long. It is exactly why I bought my C3. The Guard models are even more efficient than the C3, more like H13+.
After years of trying the best canister & cordless vacuums, I can assure you, no cordless vacuum can ever be as as great a cleaning machine as a great canister vacuum. But you do sacrifice portability & overall ease of use. They both have use cases. So now, we've the Miele Complete C3 Brilliant & the Dyson V15 Detect.
I have a Miele Capricorn canister. It is awesome! Worth every penny. No issues after 15 years! Great brand! Bought from a local vacuum store.
Miele C3 or Sebo E3 are true sealed, bagged HEPA units. They're excellent for allergies, pet hair, mixed flooring and rugs.
C3 is the best (and probably the one you have). Can fully recommend.
Miele C3 with HEPA filter (corded and with bag). It's really the best you can get. Has a very useful set of tools onboard as well.

SEBO
AIRBELT E3 Premium
Ultra-durable, 10-year warranty, but expensive with short cord.

Numatic International
Henry Canister Series
Budget king, super durable, but heavy and poor on carpets.

SEBO
AIRBELT D4 Premium
Durable, powerful, long cord, but heavy and pricey.

SEBO
FELIX Premium
Durable, powerful, good for allergies, but heavy with awkward attachments.

Miele
Classic C1 Cat & Dog PowerLine
Durable, powerful, quiet, but very expensive, short cord.

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
SEBO - AIRBELT E3 Premium

Ranked #1
Numatic International - Henry Canister Series

Ranked #1
Dyson - V15 Detect Series