I watched it Friday with the gf (who had never never seen it). There was only four other people in the theater besides us. I fucking loved it as expected. It was so cool to hear Hammer blasting and Shredders hideout in full big screen glory with the kids playing free QBert and Bubble Hockey and smoking cigarettes

Shredder's entrance also looked and sounded fucking sick.
Girl's interest was set on during the Raph/Splinter scene after he comes in from losing to Casey and Splinter gets all loving father with Raph getting teary. She was glued til then.
As soon as the credits rolled, first words out of her mouth were "You all were really allowed to watch that as kids?" (there's a ten year age difference)