I have used the same barber in Bangkok for more than 40 years. Even after I moved to Pattaya, I always plan my trips to Bangkok around the time I need a haircut. The barbershop is located in Sukhumvit Soi 8. He used to be on the main soi, but moved into the first side soi on the right hand side some years ago.
no fuzz. Around 10 minutes from arrival till the job is done.
Price is 200 Baht paid to his wife, and I always give him 100 Baht tip on the way out.