Ditto. It's got two real benefits that I see. First, it stores/carries very flat, which is something the Bushbuddy, Bushcooker (and their knock-offs), Trailstove, Sierra Stove, and the new Biolite can't claim. The best solution for those is to find a pot the stoves can store inside. But still, packing dead flat IS an advantage IMO. Secondly, the Emberlit takes fuel from the side, and can be fed larger sticks at a slow rate, rather than tiny twigs from the top. Another definite advantage IMO. I'm not an expert but those are my .02c.
The Firebox name seems appropriate because it looks very similar to the upper half of a VitalGrill stove, as seen
HERE.
It does appear to set up fast, but other than that I'm not impressed. YMMV.
Vargo makes some folding Ti stoves also, but I've never tried them. IF I wasn't interested in the Emberlit for some reason (can't think of a reason) then I'd try
THIS ONE before the Firebox Nano. For the price I might try it just because.