D320N - ~1week of tests:
Bluetooth audio randomly stops working, did not found any patterns, looks like it got better with the latest updates but I didn't test that much.
Dialer is kinda buggy, it sometimes crashes, sometimes won't call, sometimes it calls but I don't see the "calling" screen. Again, seems like it got a tad bit better with the latest update.
Battery is not as good as stock, but still pretty good.
Camera doesn't work sometimes, works after soft reboot tho.
Various crashes (not that bad).
I'd say it's good for a daily use, the only really frustrating problem for me is bluetooth audio