We took our girls in April, DD4 and DD7. We had reservations for 12:30 (made them 60 days in advance) but still had to wait about an hour because there were parties before us that were running late. They gave us a pager so we could shop around in DTD while we waited but it still threw a kink in our plans for the day since it was a park day for us. My girls both got the "Take a Bow" style for $19.99 (this is the cheapest/simplest style but worked well for my younger girls).
First they interview them to complete the "contract"...what is your favorite Disney channel star, what is your favorite color (for the hair inserts), etc.
Then they sit them down in the style chair and put a TON of gel in their hair, slick it back to make a bow style with the color of hair add-in they chose (one chose aqua and the other chose puprle), and then sprinkle it with pixie dust glitter. Then they put the make-up on...warning: they let the kids pick the shades so I had to step in and ask for a light/sheer shade for my little ones since they both picked really dark/bold colors of course! Once they're all made up, they announce something about the rock star being ready.
After that they send them over to the booth for their photo session with microphone, guitar, etc. You can buy a photo pkg for something like $35 or a lanyard photo for $20...can't remember the amounts exactly since we didn't buy them. You can take your own photos but you just get the blue screen background instead of the backgrounds they super-impose into the photos. There was a photopass photographer there too so you can just add them to your CD if you're buying one. I thought our blue background photos on our camera were just as cute though!
They also send your kids home with the brush, comb, and make-up case (looks like a large sparkly lavendar billfold/wallet with a small mirror and a variety of make-up).
My girls thought it was great but they were definitely ready for their hair to be taken out by the end of the day. We did Libby Lu the year before when it was in the same spot which I thought was better, but our girls still enjoyed this. Glad I only paid for the $19.99 version though since it doesn't last long.
I think I enjoyed Libby Lu more because their stylist was very age-appropriate and Disney-ish with them, and it seemed much more organized and fun with cuter styles. The ladies at Stuido 365 were a bit grouchy and gossiping/whispering about some kind of workplace issue going on that day, so they didn't interact with the girls much at all other than to tell them which way to hold their head when they were digging in the million bobby-pins. These gals definitely lacked the Disney magic.
I have a bunch of photos but I haven't ever uploaded pics here since i'm not sure how...sorry!