We bought this television earlier this year after our Samsung HD was relegated to one of the bedrooms because the glass/plastic surround got too scratched (from using the incorrect cleaning products!!)
We did a lot of research before we bought because we wanted to get it right!! and picture and sound quality is sooo important to us.
Panasonic brand has won a Which award three times for picture and sound quality I believe, so this was an important positive factor for us in our decision making.
We had the set for a good price, it was on offer in our local Panasonic outlet and we asked them to install it for us because it was such fun(NOT) installing the previous one, although all of the cables were still in place.
The TV has proved to be better than the Samsung in my opinion in terms of picture quality certainly and the built in Freesat is far more responsive and far easier and quicker to use.
It does not have picture in picture if that is an important feature to you, (it is certainly one that wee have missed surprisingly) but apart from that the other features are intuitive and easy to find from the menus.
We have it mounted on a wall bracket, but that is no mean feat to accomplish, luckily it was done for us, but if you are DIY I would suggest 2 others to help you!!
All in all a lovely picture and sound ok.....