considering I have not gotten mine yet (though it is in transit!), I did place an order for one while some of the problems were happening and never backed away from the order. I have always wanted to get to a smaller, lighter rig, and as those that know me will tell you, I didnt even care if it didnt sound up to par with the V3 (as that is what I was running)...bottom line I wanted to get away from tapes, multi boxes, multi interconnects, SLAs....and get to, mics, cables, all in one. Honestly having run Tim Fraley's 722 for 5 shows, this box is absolutely on par with the V3 (as Boswell stated, may not be identical, but damn close enough to make it easy to not be willing to pack another box and SLA) and is a fantastic match for the MGs. Honestly, some of my favorite MG tapes that I made were MP2->Mod SBM1...while the V3 gave me more detail than that combo, it also lacked that very smooth tape I got from the former combo. The 722 falls right in the middle, I am getting nice highs, well defined mids and powerful, but not sloppy lows.
Add to that the fact that you can power this thing off off light camcorder batteries, and that it is virtually idiot proof, I would recommend it to anyone in our hobby. Definitely expensive, but considering it replaced a A/D / Preamp / Recorder and cables in my chain before, it is pretty much in line with where it should be.