Yes it's a nightly. Only those are available forma urushi.
I would happily write in the devel forum and provvide logs bu i stilo do noto have the number of post required
Or i can try legacy xperia but the few bits in the not working list stopped m
LX is the stablest. all the other 4.4 KK builds for our phone (carbon, pac, etc) are build on top of it
just make sure that you know that ION is a thing in development, so if you try a ROM which has enabled ION, prepare for more buggy xperience
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?