Hmm, a sawback on a machete seems fairly useless on it's own, but if you look closely at the grip, it looks like it might have a joint at the blade end. If that handle will swing up 90 degrees, then it would be a whole lot more ergonomic to use it as a saw on any kind of volume. I would be a bit concerned about that exposed edge, though.
It is about the right size for my preference. If it isn't too thin it might not be too bad.
A sheath is a waste on the trail, but I like to keep all my blades stowed in something to protect their edge and my klutzy wife's fingers when she is rummaging around in my stuff for a tool. Yeah, you'd have to see it to understand. A cheap nylon scabbard is probably better storage than casing the thing.
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The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)