Jay Sata,
KLM can be hit or miss on service, I've had some good flights with them and some not so good, I still recall when they withdrew serving beer in European economy class, that flight I was actually ticketed with Ukraine International (who are very generous when it comes to serving beer) and I subsequently complained to UIA that if they are to codeshare then to please ensure that their codesharers offer a similar level of service as they themselves offer.
The time, from CWL, I was doing an open-jaw return, outward to SIN and return from MNL and it was some £200 cheaper if I booked the outward with AF and routed via CDG that on KL direct AMS/SIN ... You think KL are bad to Asia ... You ain't seen nothing, AF are even worse!
But in those days there was no other choice from CWL (that I could get to from my then home in 10 minutes on a bus), KLM can be pricey but the fare then was quite reasonable and wouldn't have made it worth my while to route from LHR or BHX or wherever.
When I finally emigrated six years ago I flew Cathay LHR/HKG/CEB, I love Cathay