What I love about this picture, and a lot of the new very hi resolution pictures, is the 3D effect. You can actually see (or is it just me?) that the centre is 'lower' or further away than the outside. I looks like the thing is really whirl-pooling 'down'. I just love it. I first noticed it when Cassini took pictures of Jupiter. The Voyager pictures just didn't show it, they looked 2D. So to see the outside of the massive storms or 'hurricanes' much higher than the centre really impressed me. Here is the first one I saw like this:
http://photojournal.jpl.nasa.gov/jpeg/PIA07783.jpg
This image is too big for this page, but you need that to see the detail. Zoom into the top middle part of the image, there are two storms beside each other, one with a white centre and one red. You can really see the outside of the storms is much higher.
Well, maybe I'm easily impressed!! :-)