Really? I've flown both Premium Economy and Economy (>10 flights each I believe) for Delta, as well as both on a few other carriers, and I've never noticed a difference that was worth more than $20 in my mind. (Most of these were long-haul.) If it's free or very cheap, then sure, but it's such a small benefit that I've been on flights where I didn't even notice I was in Premium Economy until I stood up at the end of the flight.
In American carriers, "Economy Plus" or similar is just a little bit of more leg room, in the standard 3-4-3 or 3-3-3 configuration.
For companies like Lufthansa, SAS and others - premium economy is closer to what Business Class used to be 20 years ago. You get an amenity kit, better food selection with real cutlery, nicer pillow and duvet, and a much nicer seat - usually in a 2-2-2 configuration.
Huh! I've flown Premium Economy with a few European carriers (Air France, KLM and two others I believe?) and didn't notice anything different. Food on KLM/AF is always good though. I've never flown Premium Economy in Lufthansa or SAS (as far as I can remember.) And I've never seen a duvet on a plane even in first class! Are there actually airlines with duvets or just nicer quality blankets?
The differences I've mainly noticed in premium economy are: electrical outlets, nicer in-flight entertainment, more legroom/better reclining, nicer head cushion, closer to the front (if that's a benefit) and that's about it. Amusingly, I've found on Delta the "premium economy" section occasionally extends slightly outside, e.x. the electrical outlets and better in-flight entertainment (but not the legroom) aren't only for premium economy but also 2 or 3 rows of normal seats beyond. Which is a little strange, since I would think Delta would use the opportunity to present that as an upgrade (paid, or free as a goodwill gesture) but I've only ever seen them labeled and sold as normal seats.
There are indeed carriers that now provide much nicer bedding. I fly mostly Delta and United, and United has definetively the best bedding not the routes I fly (mostly to South America and occasionally Europe). In business class you get a blanket, a duvet, two pillows and you can request a mattress pad. Delta has a nice heavy blanket that I usually sleep on top of and a pillow.
Both carriers in the process of upgrading their seats in business class and adding a true premium economy product, not what delta calls comfort plus, which is really just more leg room at the front of the economy cabin. The true premium economy product is much closer to the premium economy that has been available on other carriers (emirates, cathay pacific, etc...) for a while and has better seats, food is served on plates, etc... It's not to far off from what one might get in a domestic first class.
"Premium Economy" seems to be a Virgin Atlantic thing and is basically their business class. It includes much larger seats, premium in-flight entertainment, nicer toilets, and a much better food and drink selection. The section on the aircraft I've flown on is also much smaller (50 seats?) and curtained off from the unwashed masses.
Agreed that a lot of airlines off an "economy plus" which is basically slightly faster boarding and slightly more legroom and that this isn't worth paying the extra for.
Well, I bought Premium Economy on Virgin Atlantic and what I got was an exit door seat - that was ok, but it was all it was. No better food or anything else.
Also, since upgrades are to the next higher seat class only, with PE you stand the chance of getting moved to J, on the rare occasions the stars line up correctly and you get it for free, or of course if you pay for it at check-in, or if you have status, etc.