My pump failed after the second season, so I called Danner and spoke to a woman about the problem, and she politely told me to send it back, with the POP, as it was still in warranty. Though I had to pay the shipping to get it there, they sent me a brand new unused PM 24 pump in the mail. About a year later it stopped pumping, so I got a new impeller for about $40, and it was as good as new. Now if they only had an inexpensive way to replace the flimsy ceramic shaft connected to the impeller, than I wouldn't have to buy a replacement one every other year, but since I live in California where the average summer temp is above 100 degrees, and the pump still works great after several years, I can honestly say that it has been worth it to me. I can still buy several impellers for the price of a new pump of a different brand, which may not even be able to take the daily abuse of overheating as well as the Danner Mag Drive. Because is has a completely sealed motor, there is nothing to go wrong but the impeller. So from my perspective, Danner pumps are well built, because mine has lasted quite a few years, and fortunately I haven't had any problems with their customer service.
Rating: [4 of 5 Stars!]