The center seats do not have any adjacent shelf space. You really don't want a center seat unless you're traveling with someone and want to sit next to and chat with him/her.

As for photos, none of the seats gets you as close to a window as would a window seat in business or coach.

Not sure what Pegasus thinks is spectacular about landing in HK. It certainly used to be spectacular at Kai Tak, especially at night when it seemed you were flying through a video arcade game, but I find the new CLK place boring (though efficient).