My sister just had a baby at Rush Copley and their birthing suites are absolutely fantastic! I don't know who her doctor is, but I know that she loves her. However, if you're going C-section, you won't really get to enjoy the awesomeness of the birthing suites! And the post-natal rooms are quite small (granted, you'll only be in it for a night or two). But the hospital itself is very highly rated for Labor & Delivery!
Another negative (for me, anyway) was that my sister was told that they didn't really have a nursery for healthy babies--healthy newborns have to room-in with the mom. I personally preferred one last night of easing into the full parental responsibilities before going home. That's just me, though. The last thing I didn't prefer was that the front desk for Labor & Delivery wasn't manned after 6pm, but visiting hours go until 9pm! So, you have to buzz the buzzer and get buzzed in, but there's no one really checking with the new mom that she knows the person, nor is up for visitors.
I guess I just had such an awesome delivery experience for both of mine at Delnor up in Geneva that anything else requires my criticism! (and my doctor also delivers at Central DuPage, which is also very highly rated--my doctor is part of DuPage OB/GYN, which the only Dr I don't recommend in that practice is Dr. Bowles--he's very old-school and hopefully about to retire...everyone else is really GREAT there!)