The place was great. I give it my highest recommendation.
The bedroom is small but very comfortable and the kitchen, living room and bathroom are great (you can do laundry which is nice).
Arne was a fantastic host, as organized and professional as any hotel staff, plus he was very welcoming and willing to give advice and info about the area.
I would definitely stay there again. Do not hesitate!
The only downside is the place is a little far from central Amsterdam, but there's a nearby tram station which makes it easy to get around. It is also close to several nice parks. I miss Amsterdam and would have loved to stay at Arne's place longer.