So far so good. For the price I decided to gamble on this pump. It was a pretty easy install to swap from an old AO Smith 1HP 3450 RPM pump as the wire connectors are the same. My pool is inground, about 35k gallons and has 1.5 inch lines. It's been running about 3 weeks now and seems to produce about the same amount of power as my old pump, if not a little more. On my system, after filling it with water it takes about 5 minutes to pull enough water to hit full prime, on 1500W mode, I don't think that the 300W mode would have enough power to ever reach prime, maybe that is cause for some other reviews on here. I installed a check valve in my system just before the pump on the suction side so I can switch between off, low, and high without losing prime. The motor casing runs about 130-150 degrees, which is hot but from what I have read, is within normal parameters for a pool pump. The low speed is so quiet I cannot hear it outside my little pump house, the high speed definitely acceptable volume level in my opinion. My system also can optionally pump the water to the roof of my ranch home through solar panels for heating, which this pump does no problem on high, but on low it does not, which I pretty much expected. The low speed is a great option to save on energy during peak hours, next summer I believe I will attempt to replace the switch with a couple of relays so I can control the speeds remotely. Happy with the purchase so far. Hope this helps.