I just had the new Google Analytics interface today, and I like it so far. What I love most is the dashboard, where I have the option to display the data in charts or tables without having to create a custom report.
Another feature I like most is that I can now use advanced segments while viewing the goal funnel visualization report. This is very helpful especially in the knowing where customers drop off in the funnel, on a per segment basis.
One of the downsides I have with the new interface is that I have to rebuild all my custom reports. In some of my accounts, I have set up 20 or more custom reports. Some of them are no longer needed though in the way standard reports are built in the new Google Analytics.