Lindhaus - HF6 Multi-function Power Team Canister Vacuum w/ PB14e L-ion Power Head

For homes of this size, either a Sebo D4 or a Lindhaus HF6. Huge bags, long cords.

Mieles are great. Just that it's a lot more convenient if you have a long cord when you're dealing with big homes Lindhaus doesn't have a big dealer network, and they're focused on the commercial market, which is probably why you haven't heard of them Make sure to get the HF6 with the powerhead

If you're cleaning a lot of hardwood floors, I would not do Sebo uprights as they don't have a brushroll shutoff Electric brooms like the Sebo Felix/Dart, Lindhaus Valzer, Healthcare Pro can fit both the hard floor tools and motorized brushrolls from Sebo/Lindhaus Uprights like the Lindhaus Diamante have 2 motors and the brushroll can be turned off for hard floors. Not ideal if hardfloors are your main surface For canisters, Sebo D9 (the commercial version of the D4) and Lindhaus HF6 would be good options for doing it all. They have the electric brushrolls, huge bag capacity, commercial warranties, and long cords

The Sebo D4 would do great, as would a Lindhaus HF-6 if you can get one with a powerhead. If you prefer an upright, I would recommend a higher-end Sebo upright with hepa filtration (I think the X7 has hepa, and 2 auto brushroll settings, while the X8 is wider but has 1 auto brushroll setting)

Dude is a paid shark shill. Take what he says with a huge grain of salt. Miele, Sebo, Henry or Lindhaus are the correct answers

The Miele, Henry, and Sebo vacs are the only ones worth a damn on this list. If you want a real BIFL vac and are willing to shell out, get a Lindhaus.

Sebo, Henry, Miele, Lindhaus all make BIFL level machines. They're expensive, but 20+ years of service is common with these brands. Sebo machines even come with a 10 year warranty when you get them from a dealer. Can't go wrong with anything from these brands. Go to a brick and mortar vacuum store and avoid big box store brands like Shark and Dyson.