We own a 42 inch Panasonic plasma and we love it! It replaced a Mitsubishi projection tv, the biggest difference for us is now we can see the screen clearly from any where in the room. The plasma also has great color, but it's not as bright as LCD TVs when it's a sunny day. The picture looks better at night.
We have had it for less then a year, but have had no problems yet. Panasonic has a great reputation for plasma TVs.