When my girlfriend was in "beauty" school way back when (25 years ago?), I went and had her cut my hair at the school. I'm not sure if this is normal, but the appointment seemed like 2 hours long. Really, but I loved it because I went at night just to hang out with her. Her supervisor would keep coming back to check on her and to help. I went from shoulder length hair to a short pixie and I loved it. I think that may be why it took so long. So a question I might ask is how long the appointments typically take.
Dh and DD both recently went to a local school. They didn't like the experience because it was noisy and wide open--no privacy. Their appointments didn't take as long as mine did.
Personally, I don't think I would go for my hair, but I would for a manicure or pedicure.