I have the 880, it wasn't cheap but it's great to know that 3 days a day while I am at work my floors are being cleaned!!! I have the invisable wall things that block off the food dishes because I learned the hard way the Roomba will push them across the floor splashing out the water.
__________________ Alisha mommy to Guinness Stout 7 & Stella Artois 5 & Teagan 4    Guinness & Stella proud Teapot Club Members |