If the results stick on this DC and spread then, in my area at least, this are Googles finest results for quite some time.
Relevance is there, I am not seeing any real problems, indeed some sites that should rank for their main name and dropped in previous updates are back where they should be. IMHO this certainly is an update and not a reshuffle, fundamnetal changes, and for the better!
Credit where credit is due, I just hope they don't rollback or wreck them later.
Incidently, these serps make MSN look like amateurs, in my field at least.