Me and a friend stayed at Joop’s apartment for a weekend trip to Amsterdam and had a great experience there. The apartment was spacious, clean and nicely decorated. It's located in a nice neighborhood overlooking a classical Amsterdam canal, and is within walking distance of pretty much everything in the city center. We got to the apartment close to midnight and Joop gave us instructions by phone on how to use the key locker and enter the apartment. Joop was a great host. He was friendly, gave precise information and was fluent in English. I highly recommend this apartment for anyone who's looking for an authentic Amsterdam experience!