The new system is really neat yes, and you can use the Arrow keys to swap covers.
I also love the old system for only one reason:
in the new system, the image is automatically resized to fit on the screen.. and does not really reflete the real size of the image (and you can't know it until you download it -it will of course download the real big image-).
A also found that little "loading..." frustrating, i am a "progress bar lover"