I couldn't resist writing about this - it's totally perfect for what I needed! I have a good size above ground pool - 20ft. diameter. A barracuda ranger came with the pool; it was passible, but my pool's bottom isn't completely flat; didn't compact the ground well enough; and also my skimmer is an in-pool of a poor design (works okay for skimming but that's it), so if I wanted my ranger to vacuum the whole pool I would have to go out every so often and guide it where I wanted it to go. Kinda defeats the purpose of an automatic cleaner! Not to mention I live between Tucson and Phoenix, the wind blows almost 365 days a year, and so what I usually get in my pool is fine dirt. So vacuuming directly into the filter means having to clean the cartridge - a lot! I also tried a manual vacuum, but with the poor design of skimmer and vacuum plate, I wouldn't get enough suction unless I vacuumed, again, into the filter. Last year was my first year with the pool, and I was rinsing that cartridge about every other week! I couldn't afford a robot, so I was thinking about pressure side cleaner. But the catfish caught my eye, and it's very affordable, ($139) so I decided to give it a whirl. Bought it yesterday, they didn't have fine silt bags for it, but the guy at Leslie's said I could use a nylon stocking; I had some skimmer socks so I stuck one of those in, and then test drove it this morning. It got everything; the little ants that committed suicide, the fine dust, everything! I love it!