Yahav and Dierdre have a wealth of knowledge covering all subject matters not just about the city, its history and culture. Lovely hosts and couple to have thought provoking conversation with.
Yahav was mostly available throughout the days of my visit and gave great tips on where to go and how to get around via public transport as well as on bicycle. Bicycle is the fastest way to go by the way.
I highly recommend Yahav and Dierde's private room for your stay in Amsterdam.