I've had the Klondiker for a year and didn't have a problem until this month. My Onzen system went out so I contacted the service department and someone was out here within the week. While he was here, he also found that low speed on pump #1 had failed. He said it was a common problem on the the first generation Italian (I think they are from Italy) pumps because on low speed, there wasn't enough air circulation to cool the motor. Luckily he had a pump (newer model) on his van. So in response to your question, I have been very satisfied with Arctic Spas. I get a lot of support from my dealer and was very impressed with the tech that came to my house.