It might be in Beta as long as Cortana was when it first came out just because it is something new. Has it gotten better? Yeah, both in terms of speed and reliability. Features? Well, only feature that comes to mind is that if you have your phone to relock itself after a certain amount of time (I have mine set for 5 minutes), it will just mention "Swipe up to dismiss the lock screen" instead of turning on Windows Hello again.