I just returned from a BWV trip in early Feb. Booked the first four nights in a studio with cash and the last two in a preferred (pool / garden) view with points. Was concerned about changing rooms as well. Tried to link the different reservations but realized that I might have to change rooms. As it turned out, I was given the same Boardwalk view studio for all nights. Had to get different keys for the last two nights but they slid them under the door so there was absolutely no problem. As a matter of fact, it was probably one of the most fabulous studio view rooms I've ever received. I know I got very lucky to get a great view and not change rooms - I called and thanked them at the desk. But . . . what I think it mainly comes down to is the fact that the resort doesn't want you to change rooms because they have to do a full clean if that's the case. So, if they can make it happen - they probably will. Good luck and have fun on your trip!