In short summary, this was the best airbnb experience I, or I and my children, have ever had. The apartment is exactly as listed -- ideal location near the Jordaan, bright and spacious and filled with light from both sides, comfortable for father and three tween/teen daughters. Cozy beds and plenty of space in kitchen and bathrooms. Best of all is the warm reception and constant, easy caring contact with owners Marc and Brenda. They are welcoming and accommodating , and really helped us with a couple logistical issues. Excellent local recommendations, too -- for sure try Foodism, Balkan tapas place around the corner.
All technical issues, such as essential WiFi , are perfect.
I recommend this apartment with these kind hosts emphatically, and hope one day to return.
The advice, btw, is correct: pack light, the stairs are steep and narrow ! (But you too can do it ! :-) )
Enjoy this wonderful home in this great city.
George