This is not quite the end of this XP run. The following day I flew KRK-FRA-GVA with Lufthansa and SWISS and will add those reviews in the next day or so. The reviews are not very complimentary because I found the first LH flight really not very nice.
Then after that, I will add my subsequent trip to Nice which was in Economy class and provides an interesting contrast in the quality of the flights to Business class. Not a contrast in the sense that you could expect.