Always happy to fly KLM. Check in was efficient, staff very helpful. Interestingly boarding was not be zone, aside from the usual priority boarding everyone just boarded. I believe it worked just as well, possibly better than boarding by zone.
The flight staff were efficient, and while obviously busy took the time to speak with us. Almost a novelty nowadays.
We were seated in "comfort economy", which was comfortable because of the space allotted, however the seats themselves were just ok.
Overall we would fly with KLM again