I’m very weary of buying a robot vacuum with a camera from a Chinese company. I don’t fully trust iRobot, but I trust them much more than I trust Chinese brands.
I also couldn’t see myself going back to a robot vacuum without a camera. After I got kids our old Neato vacuum robot got very little use since it always required that everything was picked up off the floor.
That being said I’m quite frustrated by my new J9. It’s supposed to have a feature called SmartScrub, but it’s not in the app. The robot is also supposed to drive back to the base to refill its water tank, but it hasn’t done that a single time since we bought it a month ago. The combination of vacuuming and mopping is also a bit unfortunate since it sucks up a lot of humid air when passing over areas that it’s already mopped, causing a buildup of wet-ish dirt in the air duct.