It shows promise; but it’s REALLY buggy…
I’ve been using iOS 8 Beta 1 for the past couple of weeks and I have to say that I like what I see, but it’s so buggy that it’s hard to really evaluate. Items that you thought would be solid – core apps like Mail and Music, for example – are just north of a train wreck. While this is to be expected in a beta release – especially in an early beta release – it does provide a bit of insight on what Apple is doing.