We had a lovely stay at Joost's place. Very cosy apartment fairly close to the city centre with tram and bus links around the corner. Joost was very helpful answering any questions we had before the trip and was very accommodating when we asked to leave our baggage slightly longer at the apartment after check-out. Only downside was that his upstairs neighbours were having a party during one of the nights which was quite loud, but this was out of his control. Overall a great place to stay when in Amsterdam.