I recieved my 1st ion robot for mothers day 3 years ago. It started making a weird noise so I cleaned it out as best I could and it worked for a couple weeks and stopped working. I figured I had put something together wrong and broke it so I purchased a new one to replace it. 2 years later the 2nd one I purchased had went kaput, it spins in a constant circle and then stops and the alarm goes off. Do not recommend, which I am very sad to say because I own many shark products and love them all.