We spent four nights at Adam and Branka's and it was absolutely perfect for that trip.
We saw Adam and Branka a few times and they were really lovely. At the same time, we had our own space, which gave us flexibility. The studio is well furnished - no cooking facilities but everything else you might need. We had coffee and breakfast at home each morning before heading out.
The location is excellent. The neighbourhood is very quiet at night, and even during the day. It's short, pleasant walk from Amstel station (from where we took trains to other cities) and also from some great places to eat (the Syrian cafe and Spaghetteria on Van Woustraat were particularly good for vegetarians/pescetarians). It's also walkable to De Pijp, the Rijksmuseum and the centre.