Ceiling Specialists: Popcorn Ceiling Removal

We just bought a 26yr old Condo and started renovating. We wanted to get rid of the old dirty popcorn ceiling and got a few quotes. Some were fly-by-night operations, and some wanted $8/sqft. Louie (owner) came by to quote and noticed some loose taping and a bow in the ceiling that nobody else mentioned. He took his measurements and wrote everything down, then explained the process, and broke it down in the stages of work. So to be economical, I chose to paint it myself after it was smoothed and primed, which is good for a DIYer, and saved me some money.
The ceilings look great, my wife says the rooms look bigger, and I would recommend them highly. (Actually I already have, in the elevator, to another resident looking for the same thing)
Thanks