Well I have had the r09hr for a little more than 3 weeks now and managed to get about 30 hours of run time on it.
I patched with it, took board feeds with it, ran with a pre amp and external mics, and ran with the internal mics. All without any problems
A few observations...
Likes--Better build quality, input jacks are thru soldiered to the PCB
--Better display screen, larger and much easier to see
--I like the finer resolution on the level controls
--While it pretty much sounds like crap, the internal speaker does some have value for reference in the field
--I think the internal mics sound better than the r09, even though I don't really plan on using them
--I think the new battery door/ placement is an improvement?
--As best as I can tell, I think the overall sound for line-in is better than the R09
--It's easy to disassemble and reassemble
Dislikes-- I don't like the hold button being on the back
--Not to keen on the placement of the input jacks in relation to the level buttons (kind of awkward to adjust the levels when using a RA jack)
--Not to sure about the new battery door, seems like it could be lost easily
Overall, I am happy with the R09hr. The only thing I think I might do to it is take it apart again and remove the plastic sliders for all of the switches on the back except for the "hold" button so that one, it will be easy to find the hold button when running undercover, and two it would eliminate the chance of accidentally flipping any of the other switchs.