I live near Hamilton, and try to get out to see a few games each year. I haven't managed to get out this year, but I did see him in Buffalo the other night. The thing I like about Kostitsyn is that every year he's been in North America, he's gotten better. He's had a slow development to be sure, but if he can keep improving he'll be a scorer in the NHL. His development has been a bizarre one, from the Epilepsy, then being rushed to the AHL, and especially the trouble he had learning English (it's been 3 years, and people are saying that just this year is his English getting good enough to communicate effectively) Kostitsyn has had plenty of obstacles to his development, but is slowly overcoming them all. I think that the addition of Grabovski to Hamilton has helped him out a lot this year. In the past he's been pretty much the only (Bela)Russian player around.
A few of the things I like about him that he gets little credit for are how gritty he is, how coachable he is, and how much he wants to win. He used to get knocked for being a softy all the time, which really isn't the case. He's no PF or anything, but when a guy pushes him he pushes back, and he's willingly played in the corners and along the boards, especially in Hamilton. People also used to question his work ethic, and I honestly have no idea why.
Unfortunately, I do question his hockey sense a little. Kostitsyn is one of those guys who doesn't always know when to make the pass, or which pass to make. That alone will probably be enough to keep him from being a first line player in the NHL.