Jah, I got the LG model. There was a thread on this. Used this primarily to vaccum the office after office hours. Don't expect this to do magic if place is very dusty. Suction power is still not good. Overall, good enough for office environment or home or reasonable space. The best thing is you can preprogrammed the robot cleaner to operate at different time. In my case, the cleaner in the office programmed the robot to go for two rounds after the office is closed. one round not good enough.
Also not recommended if there are too many furnitures or objects as the robot have sensors and will avoid banging on objects. So still have to manually vacuum the corners or places where the robot cannot go.