Decided to keep mine, and after overcoming my earlier Bluetooth linking issues, my remaining concerns were, will the 'zippering' be a factor? (answer: no); and crucially, will this be able to handle a line level signal (read on)...
Although I'm now able to couple my phone, the range is weaker than I'd hoped (probably 20', max). This will certainly not be a factor when stealthing, but my hopes of remotely controlling a laid down unit (at a sbd) from considerably further away, are probably dashed. I've noticed the range is somewhat better using my Wingman app, but at least this Roland app can perform level adjustments. Hellooo, SD?? <I digress> But, the primary reason I bought this unit (remote controlling from a phone, close range) is now working to my complete satisfaction...
I ran this deck twice this past weekend, both loud blues shows, and both times using it as a "backup" sbd recorder. I split the feed and ran one pair into the R-07. Between the console and the deck, I placed an 18db attenuator. For the show sample (included below) I also ran the "2xWAV-24bit" option, which puts the safety track into play (great feature, for extra peace of mind). The level selector on the deck wound up between 42-45 (out of 100) at both shows, and peaks were in the -12 to -6 range. The resulting wav files both looked and sounded completely normal.
Good luck Th, Ed!
Carry on...