In short, we highly, highly recommend staying here and hope to be back one day soon!
To expand, we had a perfect stay at Klaas's house. Klass was amazing, greeting us warmly with lots of information and biscuits, and was very friendly during our stay. Perfect AirBnb experience!
The room is lovely, beds comfortable, beautiful view where we saw both sunset and sunrise and overall we loved it. The microwave and fridge were very handy for some delicious meals from the nearby Jumbo supermarket. The house is about 3 minutes walk from a direct tram to the city centre. The stairs, while steep, are a taste of how Amsterdammers build up not out, and we had no trouble at all getting up and down.
We were sharing the bathroom with two other guests but never had any problems as the toilet and shower rooms are seperate.
Thank you very much!