Premium economy cabin guides and the comparison hubs that sit with them.

Lufthansa Premium Economy: Seat Maps, Fees and Value
Lufthansa flies two different Premium Economy seats under one name, the 2014 recliner and the newer Allegris fixed shell, across 10 seat-map layouts on 7 aircraft types. Here are the rows to ask for, the seat fees, the baggage rules and what the cabin actually costs.

British Airways Premium Economy (WT+): Seats, Fees, Cost
British Airways World Traveller Plus gives you about 38 in (97 cm) of pitch, 2 checked bags and priority boarding, but no lounge. Here is the cabin aircraft by aircraft, with the rows to ask for, the seat fees, the baggage rules and what it costs against economy.
Premium Economy vs Business Class: What You Get
Business Class buys a flat bed of roughly 76 to 79 in (193 to 201 cm), direct aisle access and lounge entry, and Premium Economy buys none of the three. Here is the gap axis by axis, and where it narrows enough to skip.
The Best Premium Economy Airlines, Ranked on Specs
Nineteen premium economy cabins ranked on published seat pitch, width, recline, baggage, lounge, WiFi and seat-selection policy, with the tiebreakers stated in full. Japan Airlines ranks first at 42 in (107 cm) of pitch plus lounge access.
Premium Economy vs Economy: What the Upgrade Buys You
Premium Economy buys roughly 5 to 10 inches more seat pitch, a deeper recline and a second checked bag, and on 17 of 19 airlines it does not buy lounge access. Here is what each airline publishes, compared side by side.

Review of Cathay Pacific Premium Economy: is the price worth it?
Cathay Pacific Premium Economy is worth the price if you sleep badly in Economy: around 40 inches of pitch, calf and foot rests, boarding after Business, and free WiFi for Cathay members. Here is the cabin, the lounge rules and the baggage allowance.