Well, I just climbed off of KL667 AMS-MSP. My advice: eat before you get on the plane.
Dinner was the standard unholy chicken/fish/pasta trinity. The salad was pretty OK, the rest was less than good. No drinks offered with dessert ("you may have cheese OR the pear tart"). I saw the box of chocolates on the trolley but they were never offered.
Breakfast was frankly unpalatable. Nobody that I could see ate more than a bite or two. It was a bizarre salad of undercooked (crunchy) rice with some ground up vegetables, a choice of "sweet or savory" (FA could only tell me that one of them had asparagus). I asked for savory and was given the sweet.
Very disappointed. This is nowhere near the quality of service offered by NWA these days.