This little robot is terrific! I’m using it in a rectangle in-ground pool at just about the maximum size, depth, and slope stated in the specs. I love that you don’t need an app and there’s almost no set up or programming. It is propelled using water- the wheels are not powered. The instructions don’t tell you how to change the wheel alignment for pool shape but I found a video online. My wheels are set to AA for my rectangle pool. I’m in Arizona where we have a dust storm season and this picks up all the fine dust at the bottom along with the typical leaves and grass. I got the white one on their Amazon store- black isn’t great in the Arizona sun. It so powerful that it goes up the side wall almost a foot- see pic. I love it and was worried it wouldn’t be powerful enough because it seems to be marketed more for above ground pools but it has no problems cleaning my entire pool-minus the steps.