We weren't home while the techs were on site, so don't know in detail what was done. They came out to look at the hot tub and then called me afterward to tell me what was wrong and what the cost would be. The costs seemed fairly reasonable and easily explained (this much for the part, this much for labor). The only issue was that after they replaced the part the hot tub still wasn't working. We had them come back out and they were able to fix it in a single visit, but can't quite remember what was done. They gave me information, but its been a while so I forget exact details. They were easy to work with and prices seemed fair although I have no basis of comparison. The cost of service used above includes all three visits. My only complaint is that it would have been nicer if they had realized it still wasn't working after the 2nd visit so that they didn't have to come out again, but overall I would recommend and use them again. I'm sure its possible that a check was done and no issues were found - it only stopped working again afterward.