Has a regular user of Digg and an alpha tester for Digg4, I have to say I am quite impress with the rapidity and the quality of the changes. The real-time digg count updates give quite a good feeling to the website in general since you have a feeling to participate in something bigger. The update has been on the right track and I hope the best for Digg.
The "my news" front page has made it vastly more useful for finding things I'm interested in. Though until it's out of beta and friends can use it fully it still feels a bit like the "like" button in google reader.
