hardware wise it’s superb. It’s the best thing I’ve bought in years and the first time I’ve noticed a real quality jump from an upgrade in an interface.
sound wise here’s a track done with the AXR4. Main vocal has no EQ just some mild compression. Sontronics Orpheus mic into the silk pre.
The software/firmware needs sorting out there are some annoyances with it’s Cubase integration when you use the control room. There’s work arounds but they’ just mean more mouse clicking than necessary. Not deal breakers but need to be sorted.
Main one is if your tracks are sent to any other than the stereo out you lose the AXR hardware menu on your track. So if I’m say recording a guitar with 2 mics and then send them both to a bus , if i want to do a repair or over dub I have to set the tracks back to the main outs rather than the bus and then back again. Not the end of the world but annoying 
M