In these cases where there’s alot more inventory of the room you prefer (assuming you are ok with Floors 1-4, and just want to avoid Floor 5), our strategy has been along these lines:
Make the request
Have a back up for arrival day where you can pop into the lobby earlier than check-in time
Accept that you might need to wait longer in compromise to getting the room you prefer
Keep checking text for ‘Room Ready’ info
If you don’t get a text, or get assigned a room you do not want (top floor here), go to the lobby ~1pm or 2pm and see if they can help. I let them know we are willing to wait and our highest priority is the room type (murphy bed here). Still not a guarantee, but they’ll work with you if possible.
There are 65 BRV studios. Only a handful are on the top floor. Odds are in your favor here.
This strategy isn’t good when the rooms to avoid are a large number of what exists.
Basically you want to let them know it is very important to you before they assign most of opening rooms. Yes they do assign prior, but I’m talking about on the actually day when they are pushing through the assignments as the rooms come ready. Things can still be switched for rooms that haven’t sent room ready text yet and are physically unoccupied.