Priceline is showing PRICELINE EXPRESS deal for 4* N. Mich. Ave.-River North for $112. This seems like a great deal, but am a little nervous because 3.5* for this area is $148 for express deal. Seen where some others have gotten Sheraton in this area of town. Just curious if you had any ideas as to why the price for this express deal is lower than the 3.5*. Thanks!