Very nice
Stayed one night at W Lakeshore, Chicago. Room was nice, view of the Lake and Navy Pier was awesome. Was originally put in a room by the elevator and it was very loud. There was no problem at all in switching rooms. Beds were very comfortable. They have a great, cool-looking bar. Courtesy car to take us to dinner was convenient (no return ride is available though). It's obviously sponsored by Acura because they run an Acura commercial while you are riding and have a Acura questionnaire for you to complete. It saved us a taxi fare though! And to be honest, I would now consider Acura when we are ready to purchase a new car...loved the car! Cookies and hot apple cider in lobby were a nice touch. All staff were kind, courteous and helpful.
My only reasons for "very good" vs "excellent" are:
1) They have a "window" with shutters that opens up from the bedroom to the bathroom and a sliding door to the bathroom. It is a nice touch that helps to open up the room more. However, it does limit your bathroom privacy because they don't shut tight and you can easily hear any sound coming from the bathroom and the bed is right on the other side of the shutter. If I was sharing a room with a non-family member, especially if sharing with a business associate, it might be a bit awkward. 
2) The comforters on the beds are not inviting. They are a thin, rough material that do not offer warmth or a cozy feel. 
Overall it was a great experience and there is nothing that would prevent me from staying again.