Hey, I've got mine for 5 months now... Something like that. I first read the manuals, just to know what I can do, and now I'm starting to get the hang of it. Never used the EZ-routing. hehe. Should read the manuals again. Automix is quite easy once you get the hang of it.
I suggest you just read the manual, cover to cover. Then, when you're working with it, you know what's possible, and you know where to look for it when you need it. From then on, just play around, and get back to the manual when you need it. Mine is still VERY near all the time...
As for how I like it etc... Never had anything to compare it with. I had some decent results, that I'm happy with. On the other hand I'd rather have alot more and more expensive gear blah blah.
I don't get my singer to sound the way I want him to. Got a decent mic, so I guess the mic pre's are the weakest link now. That will be my next investement.
Don't have much more to say about it for now...