I was so excited when I saw this combo so I had to get it. The robots arrived in a timely manner and I couldn't wait to use them. Unfortunately, the Scooba ran 90% once and never worked again. The Roomba, ran well once but didn't last as long as I had hoped. I have great faith, so I called and HSN, with it's great customer support, is going to allow me to return it for a replacement. I sent back the unit and now I'm waiting for the replacement. Hopefully I won't be a sucker again. You see, I saw a LOT of reviews from people who experienced EXACTLY what I'm reporting now in this review, but I didn't believe it. I'll give it one more try because I want is so badly, but if it doesn't work, I'm just going back to the old-fashioned way of cleaning the floors, by hand!