Not a fan of Gaga's type of music, and I'll never understand having all those damn dancers out there.
That being said, I thought she was very good. She led off with God Bless America, never got political, and her only "shout out" was to her mom and dad. She's got a good voice, and isn't over the hill like a lot of the acts that have been dredged up to play the Super Bowl.
This was the first show I've actually watched all the way through the whole time, though part of that was my deal with my wife -- I could leave if she got political, and she didn't.
My daughter danced for years, and I acquired a taste for it.... so I liked the dancers. The choreography and execution were impressive, and not vulgar.
I agree with you about her performance. She's got a really impressive voice, and especially by comparison to recent halftime shows she gave a good performance.