Disappointed
I was disappointed with this hotel and will not stay again. Rather than give an impression, here are some facts:
Location:
The location is fine for tourists (7 minute walk to Michigan Ave, 5 minute walk to Navy Pier) but is not convenient for business travelers. It took me 40 minutes to walk to my office in the middle of the loop. Why not take a taxi? In the morning, professionals in suits queue for taxis. The line was 10-20 people long with a taxi rate of 1-2 per 10 minutes. You can do the math, but waiting for a taxi takes longer than the walk, especially in the rain when the taxi line is longer. Also, it is difficult to find food near the hotel in the evening. There are no convenient drug stores and the nearest restaurants are a 5 minute walk away (unless you eat in the hotel). 
Rooms: 
The room are fine but not up to W standards. It looks like Starwood purchased an old Courtyard and modified the rooms but left the popcorn ceiling and wood paneling. Every W I've stayed at has had the same, high quality bathroom and showers except this hotel, which has a more dated bathroom design. More problematic, there is no closet (just a bar in the corner for hanging clothes and a curtain). Also the bathroom is not private - there is a window between the bathroom and the room that does not close completely. That's fine for a single traveler who wants to watch TV, but could be an issue if traveling with someone else. The furniture is standard W issue and comfortable. 
Service:
The service was fine, though the person checking me had my name wrong (not just a pronunciation - flat out wrong). It was pretty funny since she was apparently told to repeat a person's name as much as possible and kept saying the wrong name (I didn't have the heart to correct her). But they had the name in the system correct and it was billed correctly, so no harm.