Went today with my wife and daughter. Pretty full, 80%. The crowd really enjoyed the re-read. I thought it was great, on target, and totally worth the experience. The guy doing Chris Lattas work was great, loved his Starscream. The guy doing Jazz was right on, I wouldn't have known it wasn't Scatman except I know he's no longer with us. Greg Berger was strangely the worst of the reworks, Cliff jumper didn't work for me, but whatever. His spike didn't bother me. I liked the slightly aged version of all the characters, Bumblebee, Prowl, and Hound.
Seeing both Cullen and Welker doing the characters 40 years on was pretty amazing. Soundwave basically being Dr. Claw was fun. Megatron's inflection was enough different to be interesting. Cullen is just a pro, both Prime and Ironhide were just spot on.
My kid has been doing a lot more school band, and she had so much fun hearing all the instrumentation -- usage of instruments that she is playing. Seeing the bots on the big screen at near actual size was great.
I could have just done with the pilot episodes and then more commercials or whatever. Good time all in all.