Bluetooth is still the one missing though, specially for audio. I'm not going back to Windows though, no matter what.

Bluetooth on Linux works better than windows. Windows' Bluetooth implementation is the worst on the market, by a lot.

Bluetooth really does work flawlessly on Linux. I've even got a few cheap and nasty Chinese Bluetooth adapters that don't work on windows, but work fine under Linux.

I am not using bluetooth so I have not commented on it.