Looking for new robot cleaner

I have a pressure cleaner currently and it’s 6 years old. I’ve had enough of the leaks at the booster pump and the Polaris knotting itself up, and at this point it seems robots are far superior to pressure cleaners. With so many robots out there I have no idea where to begin to pick one. I’d like it to clean the walls in addition to the floor, and a manual override control could be useful. If it’s a great unit that will last a long time, I’m willing to invest whatever it takes. Thanks...

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