I was sold me on this model because of the high end materials and construction. The addition of a pressure relief valve and pressure gauge takes all the guess work out it the operation. It’s a pleasure to operate the smooth moving parts. Also, they include two sets of replacement gaskets, so there’s no need to spend time searching.I had a plastic sprayer in the past, and I had problems with it loosing pressure because of all the low quality parts. It finally ran away with the trash can.Jas