I needed to have all the fixtures in 3 tub/showers replaced (old stuff was builder grade junk that had been in the house since built..time to upgrade). The 2 spare rooms were quick and easy with some soldering needed. The master, however, was a nightmare. The previous owners tried repairs on their own which included gluing in a broken screw. The plumber had to rig a pulling system to get the cartridge out. He did not give up and leave us with a half completed job. We are thrilled with the results and the quality of the work. Will absolutely use them again. You get what you pay for people.