CM 12.1 or CM 13 Beta?

Hi guys,

I'm unable to ask on dev thread, so main question goes here.
Now I'm using Nikita's CM 12.1 (10.08-build). Everything works fine, but as flashoholic I can't wait to install CM 13, but as I know it's quite buggy. Can someone confirm, which features on CM 13 actually work?
- Stable SIM Signal
- Automatic/Manual Network Search
- Roaming
- WiFi / BT
- Camera
- GPS
- Incall volume settings
- USB Mass storage (PC connection)
- TWRP backup/restore
- Xposed framework / Greenify

Thanks!

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