This update hasn't done much of anything to fix the issues I've had with the dashboard for the past two years. The things that took too long to load before (XBLA game library, Netflix, and Zune Marketplace) were not optimized and the dashboard as a whole wasn't streamlined at all. They got rid of the New Arrivals section of the games store so I now have to go to each section separately to see what's new instead of one central place like before. ESPN is worthless for me since my ISP apparently blocks it. I'm also skeptical that all of the Avatar props I've earned will be fixed when the final version of this update goes live, though at least I'd be done with having to download 20 minute updates every two or three days.
At least they updated the game pages to look nicer and load a bit faster than before, though I would have liked to see the game pages for your library get a similar look to match it. It still has the same plain look as before. It's a disappointing update that just lacks any fundamental upgrades to the dashboard that I've been waiting for since NXE launched.