Seems to be quite well regarded for a cheap Chinese third-party lens. Supposed to come pretty close to the Fuji 56mm for 5x less money.
Not that many places seem to stock the mkii model which is vastly improved over the first. There are a few on eBay for ~$400 and Kamlan sells them direct for US$250 + shipping/tax, so $239 with free metro shipping seems pretty good. I think this is probably better than the Kickstarter price on release even. I very nearly bought one but I'm happy with my current Fuji lenses for now.
M43 mount
E mount
EF-M Mount (actually $1 cheaper for some reason)
F1.1 manual without stabilisation is a nightmare