It would be very hard to go wrong at Catch 35. As you walk in, there is (was) a jazz band playing what you would expect to hear in Chicago.... fun, lively jazz.
The service is prompt and friendly, and the ambiance is well lit and what you would expect. Though this is a seafood place, I ordered a ribeye and was very happy with it. Others at our table did order various seafood dishes, and they all looked great.
For a business dinner, this place works very well. But, I think it will work equally well for a night out with friends. Enjoy!