Suhmy Ultra Slim Automatic Floor Robot Vacuum Cleaner,Four Wheel Drive to Climb Over Thicker Carpet Or Door Sill, with Multible Infraed Ray Sensor Prevent Impact,4 Cleaning Mode,1200Pa Large Suction

I have had this robot for about a month. It has learned quickly and can even climb the ledge for my dining room to my kitchen. I have had no problems on the area rugs. The program timing for the robot has been difficult and it cleans the downstairs whenever it wants and doesn't always return to the docking station.