Getting in is kind of hit or miss. I was actually really underwhelmed when I went. But, the friend I went with who was also unimpressed, went back and said it was tremendous. So, we seem to have been there on an off night.
It really is. There is nothing fancy about it, but I'd go every night if I could. The potato croquet appetizer is really good. They also often have a grilled eggplant special that is amazing -- and I don't generally like eggplant very much. Actually, my wife and I tend to order just about all of the appetizers. Between the two of us, it is hard to spend more than ~$30.
Oh, and to celebrate their 25th anniversary, Charlie Trotter's is closing, so if you have any inclination to go, now is the time.