Gianni’s place was a good base for exploring Amsterdam, however we felt a bit unwelcome and we felt that the host did not really want to share his space with other people (fair enough.). We didn’t really see Gianni at all.
Overall we enjoyed our stay, but would probably find somewhere a bit friendlier and a bit closer to the inner city next time. Despite this, the location is close to tram and train station, so it is very easy to get around.