jlieblaw, if you are booked into a standard room, do not take your chances by not making a request! I, Type A Planner Mom, got so busy that I forgot to fax in my request until it was too late, and I didn't think to say anything to the CM checking me in. We went up to the room - which was #6058 - and it was directly over the service area!

This was at 3:30 PM on a Saturday and there was plenty of truck noise. And when you went out on the balcony, you smelled truck fumes. As DD11 so tactfully put it, "I hate this room! The balcony stinks!"
So after I had finished mentally kicking myself for a few minutes(yes, I know that requests are only requests, yada yada, but why hadn't I made one?), I decided to be proactive and return to the front desk to see what they could do. Actually, I would have paid for an upgrade at that point - I wasn't about to spend seven nights in that room if I could help it. I very nicely told the CM (somebody different from the one who checked us in, and I was glad, because that person hadn't been very friendly) that I knew I booked a standard room, but I was very unhappy with my location. I did not mention an upgrade. She said, "let me go talk to someone" and was gone for a few minutes. When she got back she said, "we are going to upgrade you to a woods view room at no charge, but I want to warn you that the view is mosly of rooftops." Hey, I didn't care!
Our new room number was #6096 and off the lobby. (BTW, this was a non-smoking room, though apparently some on the sixth floor are not.) We really liked it, though I know people here recommend staying further down in the wings. I rarely heard any noise from the lobby and heard no noise from our neighbors, except a *very* occasional toilet flush early in the morning. Our location was close to the lobby elevators and very convenient. And I loved being able to open my door and walk out and look down at the lobby and hear the music.
I'm sure there are nicer woods view rooms, and I wouldn't go out of my way to request this one, but as I said, it was very pleasant and we were very happy.
So two lessons learned: one, fax in your request (or have it noted on your ressie if you're really organized), and two, if you're not happy with your room, see if it can be changed. It never hurts to ask nicely.