Make sure you pay as higha price as posible for your ticket on this route I have been bumped three times to people who paid more than I did.
KLM staff usually are the best ones to ask about C on this route as they usually take up the seats as a staff benefit.
Dont get worried if a fight breaks out as this is normal - I jest you not !
Once the meal service is over overdose on sleeping tablets as they will be nothing else until the egg slop breakfast is trust upon you at an ungodly hour.
The return is a joke and gets into AMS before anything is open.
Apart from that it should be fantastic as one benefit you get over Y class is water in a bottle, but make it last as they top it up if you ask for another one and thats if you can find a FA.