The sound out of the TV itself isn't half bad, but obviously it's recommended to hook it up to a receiver. The colours (once I fooled around for a while), are pretty nice, and you can actually find suggested levels all over the internet for this model. Blacks are black, whites are white, and the overall picture quality is great.
The only cons I have with this TV, are the buzz and the bezel. I ended up returning my initial purchase because I knew that plasmas buzz, but this one was LOUD. Exchanged it, but there is still a buzz to this day. It's very central (you can only hear it if you're dead centre with the TV), and it can be annoying at times. When watching a movies, it isn't a problem, because the volume is turned up, but when watching some TV shows, or even scenes in movies with very little sound, I can hear it. The bezel isn't ugly, but it could been a bit thinner in my opinion.
Other than those two "issues," I thoroughly enjoy my TV on a daily basis.