[masklinn]

> I have heard multiple people to complain that Roombas are just wandering around randomly.

The roombas do, as far as I know, mostly wander randomly. Not only (they'll also follow walls and stuff), but they most definitely don't map a room plan which they methodically go through, they don't have the sensors to.

There are other vacuums with room mapping (samsung's navibot), I'm not aware that they do better than roombas in the long run (although they probably pass over each spot at least once per session, which roombas don't necessarily do)