we did this today at DLR. My dd is just turning 3 and she loved it! We did the full package including the photo package. All the photos were put on photopass. Our fgit was pretty good, she was very nice and calm which was good for my somewhat shy dd. She did go a bit crazy with the gel which tended to flake up as the day progressed. My dd's hair is very dark so I kept blowing it/ brushing it off with my fingers for the rest of the day.
The only disappointing part was that they were out of nail polish so my dd did not get to do that. She loves to have her nails painted so she was a little bummed but got over it quickly enough.
Used my brand new premium AP for a 20% discount which soothed the sting of the price tag a bit. On the way out we got the photopass guy to snap some pix of dd in front of the castle then headed over to ariel's grotto for a very nice lunch with the princesses.
Overall it was a great experience, highly recommend.