It was perfect. It took Mike less than 30 minutes to remove the old unit and install the new one. When I turned it on, it was so quiet, it was almost musical. The drawback was it cost $247.34. So, Mike's billing rate is close to $500 an hour. I think, next time, I will get a second quote, first, because Lake Cook Plumbing charges $49 just for the quote if you do not agree to the repairs.