I've got a 20", and I gave it a 10. I'm not a drooling fanboy, but frankly when I think about it I have absolutely nothing to complain about--I love the design (particularly the functionally-zero-footprint stand design), I love the look, I love the integrated single cable and having built-in firewire ports, and I love the screen itself--about two or so years old now, not a single bad pixel, and it's bright and beautiful. Plus, the non-button-buttons are really slick.
Yes, if I were taking price into account, I might bump that down a notch, but I was just rating the screen.
Also, if it were a bigger screen, the lack of a second set of inputs to have it double as a TV might be a drawback, but I wouldn't want that in a 20" anyway, so I don't consider it an issue.