We didn't ahve the occasion to meet with Jon but our stay was really short.
The indications to go to the appartment and to get the keys were really clear.
The appartment is nice and especially very clean. The sheets smelt good !
Thanks for the attention in the room : a fresh white rose :)
I highly recommend the room in John's place.
regardig the location, it is very close to the ferry, in the North of Amsterdam so quite close to the city centre.