Ask HN: good spot to work in Amsterdam?
any café, library or similar you'd recommend?
Apart from that I'd say any of the tons of nice little coffee shops or one of our many co-working spaces.
Drop by the VideoView office once as well if you're in town...
I just assumed he would find that anyhow, but that he might miss Vapiano as you need to get out of the building for that.
I just also remembered; if you want a good view the SkyLounge a few buildings down has an amazing view. It's a bit expensive but very nice.