I really wanted to enjoy the film as much as I enjoyed the music, but it wasn't quite there for me. I found Juliana Hough annoying after the first song or two. I thought Tom Cruise did pretty well in that role, though.
Another film you guys might like if you enjoyed Rock of Ages is Pitch Perfect. I really had no interest, but the reviews were strong and my lady friend wanted to watch it one night. I admit, I had a lot of fun with it.