I would have no major complaints at all about flying KLM.
But their website... just makes sure I will avoid KLM by all means, even if that means paying more.
Getting through their "site unavailable", "something went wrong" and a hundred other varieties of "our IT department sucks and we cannot develop a website that actually works... and sorry not sorry, either" was a nightmare. My assistant gave up. I gave up. KLM support gave up. Their "special support for corporate clients" gave up.
Result: I still (a month later!) cannot request a refund for extra services I purchased that come included into business class and for changing the ticket during the overload days. The form can be filled in, but not submitted.
I am receiving multiple check-in messages every time i fly, one from KLM, one from Air France. The latter is also in French, and freaks me out every time (did something change in my flight??)
Folks, if in 2022 you cannot build a website that actually works, how can I trust you with my business trips? I can't. Enjoy the flight experience and all, but i simply cannot waste the time I am wasting trying to perform the simplest operations.
And BTW, is it a new special service to ignore clients in business class when they press "call assistant" button? The flight attendants kept walking past me like they have no time for this kind of disturbance. Compared to, say, Quatar business class, when you feel like you have a personal assistant all flight long, I'd say... meh.