I have a 24' round above ground pool and am ready to purchase a cleaning robot. My research leads me to believe that the Dolphin E10 is only one with a rotating brush designed for an above ground pool. But being a new unit, there are no reviews. Does anyone have any thoughts on this cleaner, or this type of cleaner? It's more expensive than a Pool Rover and I don't want to buy the wrong machine. Thanks in advance for any help.