LG is a great company to own products by in general because even after something is not under warranty anymore, their customer service representatives will still talk to you, and help you troubleshoot your product. Performance Not too long ago, my BD 550 started to eject Blu Rays and certain DVDs. After calling LG, and downloading firmware and still having the problem, someone suggested I get a cleaning disc specifically for blu ray players. It fixed the problem. So this Blu Ray player performs as expected. Playback Quality MY TV is an older one, that doesn't have full 1080 hd, but does go up to 720. While I can not really discern much of a difference, there is a marked difference between something played in the BD550 and the regular DVD player. The colors are a bit richer. Sound Quality No problems here. Durability I have had my player now for over three years and it's still working like a charm. Again, I had a recent problem with it ejecting discs, but cleaning the lenses with an approved lens cleaning product fixed this. Ease of Use It was easy to hook up and understand. The menus were also very easy to navigate and understand.