We had the Tech and a new person in training, Both were very friendly and explained every thing as they did it. The Tech also did a review of all my plumbing needs, I understood everything as he explained them, the only issue is the expense of the work suggested. I will review it with my wife when she returns home and we will make decide what we want to do if anything. I did not rate the cost, I don't have a reference to compare it to. We are satisfied with Level, that is why we are still using them. We have been customers since you purchased Economy HV/AC.