Seems like the site has gotten some pretty mixed reviews but mostly positive according to their official bitcointalk account linked by Omega (here too), and there doesn't seem to be a requirement for ID or KYC as far as I can tell in the thread I linked, so that's a bit of a plus. They seem legit as far as I can tell right now. Pretty impressive the site's been up since 2014 and the OP of the official thread still seems to be active almost five years later.