Best robot vaccume ever believe me. I have tried
many different robot vaccumes before but
never liked any. This one build map of your house and then clean like pro really it never stuck as it says it works smoothly on different floorings. Best thing is if its low on.battery it goes automatically to the dock, recharge and go back to work from where it left. How amazing!! And it self empties into bagless base which holds 60 days of dirt and derbies. Belive me it goes to every corner. Love it.