Another deciding factor was that we talked to other referrals, who all highlighted his 25+ years of expertize in pool-building in GTA, and has really seen and tried it all. My wife and our three kids are very happy with the pool Josh has built for us a year ago, and have been using it with no regrets.
Special note: ask Josh if you can put in an overflow spa next to your pool - it extends the time you can use pool well into fall, and adds a nice waterfall feature at minimal cost. Another satisfied customer.