Thought I'd post a status message... I used my R-09HR Wednesday to tape a live show and have had a chance to transfer and work with the audio.
1) I started out with the gain WAY too low (external battery box mics, no chance to sound check) and had to bring it up quickly during the first song. I'm pleased to note that the sound was unaffected by recording at a low level and boosting it in a sound editor later; and any internal noise was below the noise floor of the venue. I was using 24/48 so the extra bits helped.
2) Memory was a Patriot 8GB card, rated at class 6, and it was fine. Unfortunately, the show wasn't long enough to test the auto-split feature (which I had left set to 2GB).
3) The reviewers aren't kidding when they say it's hard to see the display in daylight. With brightness cranked and some shading of the display, it was just visible enough to adjust levels. When power save kicks in, no way. The only way I was able to see to adjust levels was to play with the output volume so the display would brighten; I was afraid to use the other controls without advance experimentation... I hate to turn off power save because of the increased current draw and of course the OLED lifetime issues. Hopefully it'll be better inside or in deep shade.
4) The day I got the unit I had an opportunity to record a show with no advance notice, so I trusted the internal mics and winged it. They did a decent job, and I was satisfied with the results; again, I guessed the levels so they were initially very low but had no issues with the resultant recording.
5) This unit really needs some kind of anchor to allow you to secure it in the field. I used the loop on the back to hang it on the mic stand and wrapped a velcro strip around the case/support to keep it from moving and it worked OK, but was a bit unprofessional. Definitely cheaper than the optional case, though!