I received my copy some days ago and had time to dive in a bit.
I'm a trumpet player and I can say that the hardware rocks. It's absolutely self-sufficient. No need of preamp-prefiltering. Be aware that with non-monophonic instrument like guitars, you have to play very clean to avoid any surprise. But with monophonic instrument and voice, it works really great. The firmware still needs a lot of work, but it's very promising.