My initial reaction to the R09 (after taping a whole 3 shows):
Pro: replaceable, easy-to-find batteries.
Good sound, ability to record in 24bit (although 24/96 or higher would be preferable).
Pretty clear menu, easy to figure out (even when, like me, you don't tend to spend an awful lot of time reading manuals).
Internal mics - perfectly good for recording interviews, etc etc, will do in a pinch for recording shows - better than not having mics at all, anyway.
Con: need for external pre (not really a con, but something worth considering which will greatly increase the quality of recordings).
My initial thought was the the R09 seemed pretty light and flimsy. Definately one to take good care of.
Much-reported problems with breaking input jack sockets. I've not had a problem, yet, but I've been careful with it. Using angled jacks is recommended, I believe.
It's a nice little piece of kit - fewer problems reported than with the microtrack 24/96 (eg the R09 splits files seamlessly when they reach 2gig, whereas the MT doesn't.
Hope that helps.