mostly good, some ehhh
good: location, location, location. nice big sterile hotel. nice gym, pool and weight room. Did i mention how great the location was? half block to the navy pier trolley. two blocks to chicago river. back (or is it the front) of hotel is right on magnificent mile. short distance to all the great restaurants.
bad or ehhh: elevators are not slow, but they travel in packs. there never arrives only one in the lobby, always three arrive at the same time, so you usually wait for all three to arrive. you have to pay for high speed internet. our particular maid didn't clean our room one day and we had to call housekeeping. our room was tiny. decent sized desk, but room was so small, when sitting at the desk, my wife couldn't get around the back of chair and the edge of the bed. the decent sized desk had a 1990's 26inch tv on it that took up half the space. marriot should spring for a flat panel. no exhaust in bathroom.
service was professional and the location, right on ohio avenue just couldn't be beat. the location overcomes all the little annoyances. btw, got a great price on the whole deal from yahoo travel too.