I agree with a lot of the above. My brother has an F50, and that little amp absolutely rocks!! Great tone, simple design, great low-end for an open-back 1x12, and if you want it to, it can get INSANE loud.
I had a Nomad 100 for a couple weeks, but ended up returning it to exchange for the Stiletto Ace. I liked the versatility of 3 channels, and the onboard EQ (only on the 100), but for some reason, my main guitar just didn't sound good through it. My main axe is an Ibanez S540 which is a thin body. For some reason, the Nomad seemed to expose the thinness of that guitar. My Strat and Epi Dot sounded great, but I couldn't live with an amp that didn't get along with my "go-to" guitar. The Ace just simply ROCKS with any guitar I put in front of it. 8).
So, in a nutshell, whatever you go with, make sure you can try it with you're fiddles.