The reviews are correct. Appointments fill up very fast, though I called right when they opened and got on their "cancel list", ended up getting an appt that same day.
As for the haircut, it was a great cut for any amount of money. When you consider that it was only $20, it was mind-blowingly good. Supercuts price, high end salon result. Included a shampoo and style too.
Last, but not least, a warm towel on the neck complimented the ice cold beer better than you could imagine.
You're not going to get a better value in Pittsburgh, I can assure you of that.
Best practice: set your next appointment when leaving your current one.