I stopped buying tickets online or through anyone else years ago. I simply put in my requests in early and tell them what game or event I I want to go to, where I want to sit, and how many seats and I have never had anything but great service. Even last minute seats are great. Cubs, Bulls, Bears, Hawks, Kenny Chesney, Buffet. You name it and Box Office can get you what your looking for!
Pros: Right across from Wrigley, Great selection for Everything!