The app sometimes does not communicate with the robot and requires you to close and open. The map creation of different rooms is all show, the robot does not actually go to the room selected. Sometimes, when telling the robot to dock it just goes into eco mode. It take several tries to get it to dock, eventually I just manually press dock on the unit itself. In the two plus years I've own the robot I can't count the number of times I've had to clear cache/data, delete the map, redo the maps.