We ate there on 9/17 and the character interaction and atmosphere are great. The character interaction was probably the best we had all week (tied with LTT, I'd say). We saw all of the characters several times, and most of them even sat down at our table to play with the kids. They loved it!!!! Especially if you have small children, sit on the lower level in one of the booths...that way they are trapped and can't run off, plus the scenery changes and it keeps them totally entertained.
The make-your-own cupcake was very cute, but overall I was disappointed with the food. I had eaten there years ago and remembered loving it. The food was definitely not great this time. The meat had texture like that out of a can. Also, I was looking forward to the cheesy potatoes, but no such luck. They now have watercress mashed potatoes. Our server (Louis) disappeared quite a bit, which was the main problem we had. If the service was good, the whole experience would have been much better.
A nice surprise was that they had sweet tea! I was so happy with that! I had six glasses of sweet tea. Louis actually brought me three at once, then two more a second time. It was kind of funny. He was a nice guy, it's just that he was MIA most of the time...not that we are a needy group, but we waited forever between each course.
I'm glad we went back to GG, because the atmosphere really is terrific. DD4 and DS 7 mos. loved the characters. I doubt we will go back though. LTT is probably my favorite character meal. The atmosphere is great there, too, and the characters are lots of fun, too. Plus, the food is awesome! Never disappointed there! CRT breakfast food is also always good, but the princesses were rushed with us this time.
Hope this helps, let me know if you want to know anything more! Also, I will be uploading our pics today, hopefully, and I'll try to add one of Chip and Dale since the OP was interested in them. They were lots of fun!