A couple years ago I had Jameson build a pool for me.....the guys actually constructing are OK, but the rest is absolutely terrible. Paul Jameson told me the only thing I needed to do was make decisions and write checks. If you care if its done properly at all, YOU will have to invest a tremendous amount of your personal time, and monitor every step - they don't care - it's assembly line for them.
The designers are kids out of school, and the designs are produced to obtain approvals from the town - and then what happens on site is whatever the paint marks say and any compliance with the design is purely coincidental....YOU will have to check to make sure its correct. YOU will have to coordinate subtrades. YOU will have to do far, far more than you think.
After investing a ton of my own time, then end product is OK. But if I had to do it over, Jameson would be at the bottom of the list of pool companies.