I was surprised at how incredibly rude the audience was during the opening act. They were all talking the entire time and so loudly you could barely hear Charlie. He was actually quite good, too, not that anyone noticed.
It was the first time I've seen TB&TB without a full band and backup singers, and they did a great job all by themselves. The set got a little slow at the end. But it was a good show.
Also, don't count on getting a cab after shows at RnR - just call for the FREE shuttle that will take you to Union Station where you can get a cab, a metro or a bus or even a train if you need one.