First things first...the quality of the beds...very, very comfortable beds with soft sheets and 4 fluffy pillows. Unlike some other hotels that give you 2 crap pillows and 2 good ones, the Doubletree gives you 4 great pillows!
Internet service in the business center is very slow. But at least they give you access to a color printer and they don't charge you for using the computer and printer.
The valet parkers are virtually non-existent after hours. There is a sign outside the hotel that says to come inside for valet parking assistance. Doesn't that defeat the purpose of valet service? They should be waiting inside the door, watching for cars to pull up!