I had a wonderful time staying at Ozzy's! Everything's proved to be as it was on the pictures and even more: the place is tidy, stylish and perfectly located (yes, about 15-20 minutes from Amsterdam Centraal, but with trams leaving every 10 minutes or so, and once you get to Centraal, everything's a stone's throw away).
Ozzy's a delight to talk to and he makes sure that everything goes smoothly while you're staying over. The cats add an extra bundle of love that makes this the best place to stay while visiting Amsterdam/the Netherlands!