Yes, we've been, we took DD in March and had a great experience with Penny!
They do seem to do something special for first haircuts, there was a little boy in there getting his done, I think they get a certificate or something of the like.
We had a great experience. Penny was awesome, she's worked for Disney for 29 years, she used to be the lead under MK in the hair salon there. I can't say enough great things about her.
It's a lot of fun, get there first thing, there's always a line.
Hope that helps!