I have the Stiletto, smaller but essentially it's the same. No quirks I'm aware of.
Use the rear trim pockets as The Horn pointed out. The yellow weight packs are worth it too.
Don't add a lot of air when floating at the surface. It's large wing will make it difficult to manage if you do. For me just 1 or 2 very short bursts of air is plenty. I'm usually in relatively calm waters.
I've got about 90 dives on the Stiletto and I've yet to try the rip cord. I know I should try it and in turn get a little practice on rethreading. I've given the handle a little tug and watched the end of the cord move so I feel it's not restricted by anything. I've been told it's easier to do than it looks in the manual and once you've done it a couple of time it takes a couple of minutes to rethread. It's a brilliant emergency weight dump system.
I thought the lumbar support would be a nice addition and I bought one. I used it on 2 dives before taking it off.
Not sure if it's the design of the wing, the position of the top valve, or if it's me, but I hardly ever get more than a few drops of water in the bladder.
I hope that helps.