Here is a link to 119 individual reviews of the hotel:
CROWN PLAZA HOTEL CHICAGO - Google Maps
The hotel is located near Madison and Halsted in the Greektown area a few blocks west of the Loop. Due to the location, it would not be my first choice. It will be convenient for walking into the Loop part of downtown. I personally have found most tourists prefer staying on North Michigan Avenue since there is a lot more to do, nice stores, shops, restaurants.
I can't speak for the interior of the Crown Plaza (I assume you are referring to the one on Madison and not the other location by O'Hare). Hope the reviews are helpful.