I have installed beta 1, went back to iOS 6 (too much bugs) , then installed beta 2, then you guessed it went back to iOS 6.
And then!.... I've installed beta 4.
I love it. Only thing I can't stand is the fact that I cannot control my music without actually going to the music app or locking the phone and using lock screen controls.
They need to bring back some sort of music control in the multitasking feature full stop
Control centre?