Agreed Pool Medic. My Dolphin M500 with three brushes gets the bottom and sides, mostly, but floating stuff when the pump is off just sits there. I can skim with a net, but that's about 10 hours a day when I might need to do something else (my filter pump runs at night for low electric cost.) Eventually everything sinks, but until then I'd like to get them skimmed. I've looked at Solar Breeze a couple times. When I've finished reading all the reviews I can find, then I conclude that $600+ for the apparently short life of the thing, is excessive. It seems that two years is common and some not that long. I welcome a competitor to this field and will make a note of skimbot and follow it on the web, but I'm too old to be a guinea pig. I want to hear that they last at least three or four years or have a four year replacement warranty with no charges on warranty shipping. I really like the idea, but so far hate the poor reliability (of Solar Breeze anyway.)