Wonderful stay at the Omni Chicago
We stayed here for five nights on our mini-vacation. The hotel couldn't be better located, just steps away from everything-- we walked everywhere. The staff is friendly, professional and willing to help with anything needed. Rooms are spacious, very clean and the beds are comfortable (yes, they could use some updating, but clean is way more important to me). The place is understated and upscale without being glitzy, which is the type of hotel that generally appeals to me. Restaurant is very nice for breakfast, and the lounge is quite pleasant for a drink after a day of sightseeing. The loyalty program not only offers free internet, but free coffee/tea delivered to the room in the morning, as well as both a New York Times and a Chicago Tribune. 
My only gripe whatsoever is that while the concierge service is quite good, their hours don't seem to be long enough. When we looked for the concierge at 5:30 pm for a recommendation for a local wine bar for a light dinner, we were told she had left for the day. I found it strange there was no one around at early dinner hour to make dinner suggestions. The woman at the front desk graciously tried to help us, but she didn't know what a wine bar is! This was not a major hassle, but it is an area that I think a hotel of this caliber should address. 
All in all, a great stay and a recommended hotel.