KDZ and flashable zips are available on XDA. The ROM is so fast. Animations, app switching and generally moving though the UI is an absolute breeze. UI is ported from the G4 with some of its features (the big thing missing is manual camera).
For some reason LG enabled ZRAM (compressed memory) and a huge chunk of it (1gb on my 3gb model). The result is slight lag when pushing the memory.