I received my MX1 yesterday. While I won't comment on its performance, as my only other DAC is an Icon Mobile, other than to say it does its job well and is very powerful for its size. I was quite impressed by how it was packaged and presented. It looks very official, and I wouldn't be able to tell they were a new company just from looking at the box. The engineering is also very precise, and the device is well built. The prepackaged cables don't seem that bad; I was expecting thin, flimsy crap, but at least the USB and RCA cables are quite sturdy. Oh, and personally, the faceplate doesn't look that bad to me.
Just some thoughts of mine, but I'll leave the sound impressions up to more experienced Head-Fiers.