NEVER AGAIN. I purchased a coupon through Star Tribune for a tune/check up. The day before the appointment, I had a pipe burst in my radiant floor heat system that was gushing water into the crawl space. After 4.5 hours of chasing pipes around and cutting a large hole in my wall which yielded nothing, he gave me the choice of leaving the whole system off (no heat during zero degree temps) and he would come back to fix it or he could just bypass the whole bathroom loop. Since I needed heat to prevent further damage, I had him just bypass the problem area. I received a bill for 4.5 hours and parts. I called and very politely asked if it seemed fair to bill for something he could have done in 20 minutes if he would have given me the options first. The receptionist lady was very short tempered and rude. A week later I received a call from her saying the owner was not willing to adjust the bill. So to stop a leak, I got an unproductive hole in my wall, a bathroom without heat and a bill for almost $700. I wonder what they would have charged to actually fix it... Great first impression guys! Obviously their business plan is not predicated on repeat customers.