We got one of the older baseline Eufy models a number of years ago, and have been fine with it. Even got a second one for the upstairs since we’re lazy and got tired of carrying it up there every now and then. I’d love to have one with more of a memory of where it’s been, but really the random various patterns work fine to get most everywhere if the battery lasts long enough. I’m sure there some math there to show the drunken walk covers everywhere. Plus sometimes things get blown around, and if the robot mapped out a place as cleaned but it got some stuff pushed over there, it won’t go back to get it like the random might.

But the real reason I like the lower model is that it is less complicated. I do think that the higher end ones with all the bells and whistles probably can be a pain when things go wrong. Keep it simple. Also, your mileage may vary depending on what you’re cleaning - the type of dirt and pet hair, the room layout, bare vs. carpet, etc. A side note - bare floor is the only way to go with pets…you don’t realize until you do a deep cleaning or have to replace some areas of carpet that get damaged. Yuck.