I have been using MK3 and I think it is a wonderful machine. That being said I have some suggestions regarding the Audio interface. I highly recommend having TWO Phantom Power XLR inputs. and Two Hi-Z line inputs that can be switchable between Hi-Z and regular inputs for keyboards ETC. I also suggest using Thunderbolt 3 and USB C as your connections. This along with exceptionally written drivers will drop the Latency down significantly. You guys are doing a great job with designing, however to have this be a really powerful unit, then I would consider those suggestions. Keep it up!