Westin Chicago - Ok rooms, good service
Good location, but hotel rooms are a bit worse for wear. There were open metal shutes opening onto pipes that couldn't be closed, bathroom ceiling paint peeling and aircon/heating was not working properly. 
Housekeeping service was a bit bazaar - asked for my bed linen to be changed and it wasn't, and on one occasion as it looked like they had run out half way through and hadn't left clean towels, but had left 8 bars of soap behind!!
There was noise on the river one night that several people complained about (no fault of hotel) and the management handled it very well. Door staff and front desk are always pleasant. Room service was good, like the healthy Westin options, and was fast turnaround.
The gym is great, Sam Guiragossian the manager there, is extremely helpful and makes it a pleasure working out.