I flashed CrDroid on raven with Radioactive kernel and so far everything is working fine. I confirms all pixel specific applications works, also chat function on Google Messenger, which was not working on another rom, here is fine.
Also Google Recorder (it's working now also in many languages apart english) as well Transcribe, and Now Playing function as well.
I had some issues with main camera on gcam becoming dark sometime, apparently it can be a common issue with other roms, but since I flashed Radioactive it didn't occur anymore. Battery life is very good, i got less than 1% drain in idle overnight.