USB: Great! We put a movie on a key, the key is plugged into the TV and it reads very well, divx to mkv 1080p, impressive. Also read subtitles! Occasionally, the sound cut half a second, but it must come from the encoding of the source, and at other times I can not read an episode (too choppy sound and image), but it also has to come encoding.
Network Jack! Very as well, it connects the TV to the internet box and access to the contents of server (Freebox v6) or PC (Samsung AllShare software)
Sound: Very good for TV speakers! I never exceeds 15-20 out of 100
Image: very satisfied in HD
Swivel Stand: Very convenient, but I wish he turns a little more.
Remote control a little big compared to my old Samsung TV, but matter of habit.
By cons attention: The picture of the TV on the amazon website is not good! The foot is not transparent cylindrical glass as the picture, but black and slightly tapered. This does not change, it's still super nice!