Got it just a while ago and after I updated and did a hard reset, I'm still very disappointed. It's the worst build so far. Start screen takes ages to load each time after pressing the home button, Store beta won't install any apps, many settings are rendered useless, the new background options are bugged...
I really don't know why they decided to release a build that just makes everything worse, the only things I thought I'd at least enjoy are Office and Music/Video preview apps, but since the Store beta doesn't install anything, it's useless anyway