I'm a bit late the party (my RSD was yesterday because Australia) but I figured I'd post up my experience. This year was my first RSD, and even though I didn't score the releases I really wanted I still had fun.
Things weren't crazy busy at my local stores, I rocked up half an hour before opening and was pretty much at the front of the queue at both. The first store did the menu thing which made it pretty easy. The second store let people in in batches of 20, then those 20 crushed around the small the table with the crates of RSD releases. It wasn't too bad I guess, but I much prefer the menu format than a free-for-all.
In the end I picked up:
Sky Ferreira - Night Time, My Time picture disc
London Grammar - Hey Now remixes
Anamanguchi - Scott Pilgrim OST
Camera Obscura - 4AD Session
Opeth - Watershed (didn't arrive on time, on order for next week)
Edit: obligatory photo