Alex was a great host. He worked with us because we had an usually early arrival into Amsterdam and was welcoming from the moment we arrived at his house.
The room is very close to everything in the city center. It is about a 5-15 minute walk or tram ride to nearly every place of interest in the city. And if you choose to take the tram, there is a stop directly in front of Alex's entrance.
Alex provided us with a map of Amsterdam and gave us some advice, but left us alone to explore thereafter. He was always available if we needed to contact him though.
The bathroom was quite small, though this seems to be common in Holland and the street grew louder at night the closer it got to the weekend. But overall no complaints. Would definitely stay here again.