
Roborock
Qrevo S
Reliable, great mopping (lifts pads), but poor cable avoidance.

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Ive got the ecovacs t9+ that ive had for about 3 years. They replaced the motor free of charge. It still sounds like an animal is dying and the navigation of my home has veen absolutely shocking for the entire time ive had it. I hope the newer models are better.
Mine (Deebot T9+, so getting on a bit I guess) can’t be trusted to run every day. Never know when it’ll get stuck on something stupid, like a chair. It also has that issue where the dustbin doesn’t REALLY clear out the debris from the vac most times. Also sucks the dustbin lid down hard enough to cause it to open, so it always needs some manual intervention.
I don't know about the T50, but I found Robot Wars when researching which robot vac to get and it was fantastic information to have. They don't just run it around their house like many people and actually test suction, noise and true % of picking up debris and mopping spills. I'm a fan. Their reviews and testing helped me decide on the T9 which was brand new at the time. 4 years on and it's still going. I think the only issue it has is it's starting to not feed water properly at the start of mopping. I never had to wet the mopping pad first but will have to now. It's a small inconvenience for the amazing help it provides. People will often reach out for help or in frustration when something goes wrong. This is why we tend to see more complaints online. People who are super happy with something don't tend to post about it.
I feel your pain. I had an Ecovacs T9+ and its software was atrocious. I am currently using a Dreame X50 Ultra complete and am very satisfied with it. The only negative things that I noticed is, its intelligence while the LIDAR sensor is not very good, its carpet detection is kinda wonky and the detection of the cleaning liquid container appear to not work sometimes. But the overall navigation and function of the Dreame is much better than the Ecovacs I had.
I’ve tried the RR Curve 2 Flow, the Ecovac T90, and Narwal Flow 2 and the Narwal Flow 2 and the Narwal is the best mopper of the 3 by a lot, middle of the pack for vacuuming, quietus, and best navigation. I wanted a roller and the only other contender was the Dreame Aqua 10, but it had too many issues. The other roller on the market, Mova, had bad reviews for battery and clogging. Again, my own experience. The Narwal is far from perfect, but the best I could find tight now.
We got a Eufy vacuum only a few years ago and after having to sweep everyday due to having 2 dogs and a cat, it was this amazing luxury I couldn't even imagine. It ran really well for a long time. Then it did need to be replaced. We got the same model but this one had some issues rather soon. The remote stopped working which was a little important since i had a non mapping model. I still ran it but it would push dining room chairs around, get stuck on the base of our fan and cat scratcher. During Prime we splurged on a Ecovac Deebot that mops. Wow it is such an upgrade from what we 1st started with. We are really happy with its performance, my floors have never been so nicely maintained. Totally worth it.

Roborock
Qrevo S
Reliable, great mopping (lifts pads), but poor cable avoidance.

Roborock
Saros 10 Series
Slim, quiet, excellent avoidance, but weak on carpet.

Dreame
L40S Ultra
Superior avoidance, great for pet hair, but poor on carpets.

MOVA
P10 Pro Ultra
Budget king, smart avoidance, but struggles on patterned carpets.

Roborock
Qrevo Curv Series
Great for pet hair; handles high thresholds, but poor avoidance.

Ranked #1
Dreame - X50 Ultra

Ranked #1
Roborock - Saros 10 Series

Ranked #1
Roborock - Qrevo Curv 2 Flow

Ranked #1
Roborock - Saros 10 Series

Ranked #1
Dreame - X50 Ultra

Ranked #1
Dreame - L40S Ultra