I purchased this TVto replace a 55" Bush TV. With that the only negative thing I have to say is the size - in a world of massive screens the 48" feel tiny once in front of you.
Other than that - cannot fault it too much. It's beautiful thin, the resolution is great and the OS is fast. I do find the sound very meh, but this might be down to settings and me trying to balance it with the sound bar alongside the TV. Which is another benefit - you can make both play sound at the same time, but you have to use separate remotes.