We are a family of three and had traveled to AMS as tourists. It was a nice stay at Menno's place. The place is as you see it in the pictures and it is done well. It is a well equipped flat and 3 to 4 people can stay in comfort.
It is a short walk to tram station and from there the central area is like a 5 to 6 mins tram ride. AMS has excellent public transportation and you will get the hang of it almost immediately. Tram 13 and 17 go to Marnix Straat from the central station and Menno's house is just a 5 min walk from there.
only caution is that it is 3 flights of really steep stairs, and Menno had already informed me of it. Infact he was so courteous that he helped me with a suitcase. The other catch at times can be that the road noise slips into the bedroom. since we were tired, we were able to sleep though.
over all it was a great stay at Menno's place and he is a very helpful host.