Cash or check only - no credit cards! Turn on Robin at the NCBT and it's on the left. Don't forget to tip, these guys deserve it.
There were four or five guys working at their barber stations when I went in and none had hair longer than a quarter of an inch so I was a little nervous. But they handled my "prissy" hair very nicely with clippers and a comb. Hot shaving cream and a straight razor finish for the back of the neck. I came out looking very respectable for the wedding reception I had to go to later in the day.
It doesn't look like much on the inside but they are turning people out quickly so you won't wait long. They finished up some dads with their sons while I was there and I'm guessing they could handle a football team in short order.