RE: Two or three class

I fully agree, that airlines with 3 classes often do not know how to handle the guys “in the middle”, and I prefer airlines only providing a 2-class lay-out (C/M, like fi. KLM.

I frequently use Middle-East based airlines, and am exposed to very different standards.
Kuwait Airways C-class is fairly equal to F, however with a narrower seat, but enough leg-space, identical meals, etc. and cabin crews take good care of the passenger.
In the contrary, Gulf-Air C-class, to my opinion, tends more towards an “economy-plus” concept, seats and legroom are OK, but cabin crews still ‘throw’ the meals in your direction, they try to avoid paying attention to the passanger.

In SaudiArabian and Emirates, the difference between C, F and M fully depends on the type of aircraft.
When they use the 777, an F-ticket is waisted money, as C service is very adequate.