Waited for more than an hour to drop my bag. I don't know if that's normal here, but I travel a lot and that was the longest wait I've had. Security check was fast though.
If trying to use the self transfer stations and you didn't check your bags IN Amsterdam, say NO to the "Have you checked your bags in the departing city?" question.
Rather than buying the overpriced sandwiches, get creative and combine foods yourself in the FoodVillage. I was for instance able to find a fitness baguette + Brie + heated up in microwave, budget: 2€
If you fly with BA, better make sure you know the gatenumber, because it's not on the boardingpass and D31 hits you as a surprise (10-15min walk) and closed is closed at BA:(
Not all trains go to Amsterdam Central Station. Read the info boards before you take the escalator down to the tracks, to avoid running around like crazy ;-)