I arrived without my referral, they still took me.
The tech I had was so sweet and knew what she was doing.
It's just odd that when you change, there is no locker. You put everything in a bag and carry it with you. It's only a small inconvenience.
Also, try to wear a top and pants. That way you can just take off your top and they give you a cape to wear. So you do not have to take off everything like you would if you wore a dress.