Well, I'm a week late in posting, but wanted to update with our experience:
When we arrived at HRH on 9/30, after waiting 30 minutes in line for checkin (there was no separate LoewsFirst line, and when I asked an employee he said they hadn't set it up because there was no need?), I was told that "We have you in a Club Queen room"! I said, "No, I booked a Deluxe Queen", to which he looked like he had no idea what I was talking about. He said he had us down for a Club Queen and explained that it was actually an upgrade from a Deluxe. Yes, I told him I realized that but I had specifically booked the Deluxe for the pullout sofa, so my 65 yr. old MIL wouldn't have to sleep on a rollaway bed, so while I appreciated the offer of the upgrade, I really needed the Deluxe. To which he replied (surprise, surprise) "We don't have any available". I wasn't about to go quietly, so I insisted we had booked a Deluxe (actually switched our ressie from PBH specifically for the Deluxe bedding), and that's what I wanted. After about 15 minutes of him trying different things on the computer and speaking to other employees, miraculously a Deluxe Queen appeared, but it was smoking, when we had requested nonsmoking. I was just happy to get the room so we took it anyway. On the bright side, he did give us vouchers for free breakfast in the Kitchen for the inconvenience. We really enjoyed that.
When we got to the room it smelled of smoke, so when the Bellhop came I asked him if he could send someone up to spray it. He said he would do better than that and he would have an air purifier sent up. It never arrived, despite the front clerk's assurance that he would follow up and make sure we got it (along with our milk and cookies, which we finally got the 3rd night). By the next morning my poor MIL could hardly breathe, so we went back to the front desk and asked if by any chance a Nonsmoking Deluxe Queen had opened up. Our clerk this time was wonderful. She really went out of her way to make several changes in the computer and finally was able to give us the room we had originally booked for the next 3 nights!
So in summary, I was right to be nervous about overbooking. I hope everyone else has a better experience!