I have had it for a little over a year, and at the beginning everything worked well, but now it always gives an error for undocking and it gets clogged so no water comes out to clean the floor. I feel that they have a long way to go to get a mop that will get the job done well and last. I have the Irobot 900 series and that one never gives an error, works perfect and I can see I will have it for a long time. This one however I feel I overpaid< i have to be present in order to make it undock.