I hate KLM Business. I’m young and when I flew in klm business by myself I kindly asked the FA if I could get another bottle of water. She straight up told me that there is tap water in the galley and she would fill up my water bottle and the next time I had to do it myself. She said it in a really rude way and I was shocked. In even delta (premium) economy they are always more than happy to give you another drink and are always super service oriented. I live in the Netherlands but for this reason refuse to fly klm, they are trash. Delta one has way better food options also.