I am flying Virgin Miami-London-Athens Eleftherios Venizelos...
And we tried premium economy, but it was DOUBLE the economy price ticket which was 818 per person. SO I am stuck flying hte back of the bus, at least i will have a PTV!
Good luck with finding a good ticket- Premium economy looks very nice
However regarding the seat and leg comfort I am sure those old 742s will be phased out soon, and will be replaced by better 747-400's or something