I run Axe-Edit off of my Mini, which is right next to my amp. Rather than moving my interface (which has MIDI on it, obviously), I grabbed a $30 Uno to make things easier.
And it sucks. A lot. I'll load up AE, and it'll detect everything. Swap a few presets, and it'll drop the connection. Reboot the Mini, and it'll work for another 20 minutes. Lather, rinse, repeat.
I saw a lot of similar reviews (after buying it, of course), and they're all right. The Uno sucks. Do not buy.
I bought it about 2 years ago. If you had asked about it, I would have said something.