It's the day after Christmas and we tried out the Bobsweep. The suctions seems good and has an option to use a UV light.. it comes with a remote control..
I also have an irobot roomba........ I'm still comparing the two, but I noticed that the bobsweep would get caught on a part of the carpet where the tile ends and the carpet begins..... it also got stuck under a part of our kitchen cabinet.. it's a little bulkier than the roomba so it doesn't completely fit underneath the kitchen cabinets.
It does however go under the table and fit under some chairs, where the roomba would hit the chair leg and return..........
Should be good for carpets, for the sale price.. it's good. Also comes with a small mop head, though I haven't tried that part yet. If you're paying the full price, might be better and cheaper to go with the iRobot Roomba, and it comes with the block sensor. The Bobsweep has one, but you'll have to buy it separately