Still using Reason 8. Haven't hit the button for 9 yet. Love the 9000J mixbus. Love the fact that I can rewire any of the rack extensions (plug-ins) just by flipping the rack around and moving cables (REAL WORLD, BABY!)
Love that I can control external midi with it now (was not available in previous versions). Love how simple it is to record, edit, move, stretch, etc. Just a fun environment.
Do NOT love that I can't use third party extensions and etc. Still need to go to Reaper for SSD and I'm slowly learning enough to work with what I've recorded in Reason so I might be able to get over there for my mastering projects.
Hey, Manslick. What REs you use, and which do you really like?
The C1-L1 is amazing, I use it a bunch, but that's the only RE I've really been impressed by...although I love what I can do to my voice with Polar. Neptune is acceptable, but maybe I'm not using it to it's potential. Haven't really found a decent limiter: have Ozone Maximizer (don't like at all) and the Onyx 430i Tube (which I use a lot, but am not completely sold on)...
One thing I really like is two click parallel channels. Use the crap out of those. I like to use an audio splitter to take the parallel from my vocal bus to several different C1-L1s on other busses to cut lots of instruments subtly and make a nice space for the vocal.