You need to go to see one in person for yourself. I got a look at one of their 55" LEDs (not positive which model) in a Magnolia a few months ago, and the look inexplicably amazing, edge-lit or not. The motion looked very natural with no noticeable artifacting. I didn't spend a whole lot of time with it, but it was hard to believe I wasn't watching a plasma.
ht Panasonic TC-P60ZT60, Monitor Audio: Silver RX6, RX Centre, Radius 90HD; Martinlogan Dynamo 700, Marantz SR5006, PS3, Oppo BDP-103D
2ch Marantz PM8004, Sony BDP-S1000ES, JVC T-X3 tuner, Monitor Audio Silver RX1, REL T3, Apple TV, Peachtree Audio DAC•iT
lr Panasonic 50ST60, Sony BDP-S5100