This was my third time seeing the show (saw Derek twice), but I saw Cody on Saturday.
To be honest, I'm not sure if I was just surprised that he wasn't as awful as everyone as saying, or if he was good. Either way, he definitely exceeded my expectations. His voice was weak at times, yes, but he was fine and a good actor.
The people with me didn't notice his accent, but I did.
Also, him and Christy had great chemistry, especially in the first act.
Don't let the fear of him being awful pull you away from Anastasia. It's still a great show, and he did good. I enjoyed it just as much as I did the last two times.