If you feel it is worth the extra? Which you do
Again, if you can, do it. I think it certainly beats racing to get to the airport hours ahead to hopefully get the emergency row, which I've not always lucked out on, and it SUCKS... but I also always fly long-haul; so sitting in economy is a killer for me.
The seats are wider AND tons more leg room, only 2 seats in a row instead of 3; it's a smaller section of the plane, so more room to get up and stretch your legs (and overhead storage)... and as mentioned, earlier boarding and pre-flight drink, which is a nice touch, but I've also found the service to be slightly better than in economy. PLUS - year before last, on my way home, I got bumped up from Premium Economy to Upper Class
(that wasn't the plane with the beds, but still... sweet!).
I'd say treat yourself, at least once, and see for yourself.
I grew up racing to check in for the Emergency Row seats; when I would ask my dad why we didn't just fly business or first class (yes, I was an ignorant, spoiled kid), he would ask "well, would you like to do that, or would you rather we save that money, and then we can spend it when we get to wherever we're going?"
So, when he put it like
that... made sitting in economy a LOT easier. And my dad is 6'6"!