For the first HDTV in the house we finally decided against the newer LED tech, as the LED sets we viewed had slightly inferior picture quality and noticeably inferior sound to the Panasonic LCD sets whilst being £[] more expensive.
We thought the picture quality on this set to be the best of the 37" LCDs available.
No disappointment in service: it's easy to set up in 10 minutes, has all possible connections for HDMI/SCART/RF cables (take your pick) straight into the back and the picture and sound quality are both superb. The HD picture quality in particular is first class.
If you're thinking of buying into LED, you'll get the advantages of a lighter-weight set easier to mount on a wall, and the questionable benefit of slightly lower electricity consumption - but one washing machine cycle uses more power than a month's TV viewing anyway, so don't fret about that too much. The considerations (at the time of writing, June 2010) are the considerably higher price tag with LED, the inferior sound from tinny little speakers due to space restriction, and the fact you may need adaptors to plug any cables in the back as the sets are so thin that normal SCART sockets etc. can not be directly accommodated. None of these drawbacks apply to LCD sets.
The only downside of this LCD Panasonic set might be that it is a bit pricey compared to some other LCD or plasma sets, but the price will come down this summer in my view it's worth a bit extra as the whole package is so good - and it's still £[] less expensive than the equivalent LED which, in my view, ain't as good.