Chose this Pentair after having had a miserable experience with a Hayward that failed after 15 months. Chose to replace rather than rebuild after local service rep said problem is rampant on the Hayward units. Easy installation for the most part, but getting O rings to stay in place was a bit challenging. Pump is running great, if a bit noisier than I would prefer. Amazon's supplier source was great and pump arrived on-time without any damage in transit.