LX F on A340 is still one of my favourites.. Yes, it looks old, and the colors aren't helping
But the seat is very comfortable. I am not hesitating to book LX F.
In C ymmv. You need to choose the right seat and this whimsical air cushion thing doesn't work for me. Still better than LH.
If I learned one thing in the last month: Loyalty does not pay off. And also since I fly a lot, I quite frankly get bored a lot by doing it always with the same carrier. And it is not only because the food doesn't change for a month. I get bored by the routine of same lounge, same airport, same aircraft type, same service concept.
So spicing it up by choosing different airlines is great fun.
Though AF still is on my NoFly List.. Sorry.