It is hugely worth it...otherwise I wouldn't be spending over $200 to stay at HRH (with an AP discount) for one night. There are much cheaper places to stay but with that FoTL ability, as many times as you want, it's worth it.
Last Dec, my friend and I each had a studio at BWV. We got a great rate ($150, AP rate) at RPR, for one night. We packed backpacks, took the Mears shuttle over to US/IoA first thing Wed morning...checked into RPR and had a ball for two days...took the shuttle back on Thurs afternoon. We just left our BWV rooms empty for the night..it wasn't worth checking out and then back in again. I would do that again in a heartbeat. It was so nice to just walk over to the two parks!!!