You should definitely go back to Amsterdam and see it properly if you haven't already it a beautiful country!
Also, for your next trip if you are going by plane, I created an inflight yoga routine you can do from your seat :) click here to read
Hope you find it useful!
It's too early for Amsterdam. Not warm enough.
Hehe! Where are you from? I'm British so used to these temperatures!! Although it's nicer I suppose to go when the Christmas markets are on as well :) I have been to Amsterdam six times, but it's not far from me and I have friends there!
Summer is always great with all their festivals :)