Pre-ordered one of these from B&H when they were first announced, and received mine, earlier today. Some observations (having recorded nothing more so far, than my own voice)...
Being a longtime fan of the R-09HR, which I've owned multiple units of, since they first came out in 2007... I could totally love this thing based on form factor alone! It's tiny (feels similar to the R-05 it replaces, which was smaller than the prior R-09HR model). It's sexy as hell, but I have a few major beefs with it, right out of the box...
Bluetooth connectivity (I own a Pixel XL) is crap. I've gotten the devices to pair
once, which allowed me to to play around a bit with the downloaded app, which gave me a limited feel for the functionality of the app as a remote. The function I liked/hoped for, and wasn't sure would be present, was the ability to adjust gain from my phone. However, once the 2 devices were paired, whether I attempted to do so on the phone or the R-07 itself, an audible tick could be heard when moving in the range of 1-59 (the scale runs 0-100, unlike it's 2 predecessors, which ran 0-80). I've not been able to reconnect since, and this is with the units side-by-side (good luck, further apart)! Also, the omission of a dedicated line in, which all 3 of their prior portable models had, really makes me wonder what Roland was thinking...
I bought this recorder to use in 1 of 2 circumstances:
, or those situations where the sbd is not in an opportune spot, so that I could clamp/set up a stand more ideally, yet remotely start/stop a board patch, and adjust levels from a distance. The squirelly Bluetooth and the audible clicks are a no go for me. If a firmware update shores these up in the future, I can always repurchase, but for now, this sucker's likely goin back. I'll try to talk to some tech tomorrow, but not very optimistic, at the moment. Sorry for the ugly news...