We (my girlfriend and I) stayed for 1 night at Maarjte's appartment and it was really great.
She helped us in advance how to get to Amsterdam and to her appartment, where to park the car, how to get by tram / bus / train to her or to Amsterdam Centrum, so that we had no problems to find and get there.
Maartje was very friendly and open, she showed us her beatiful appartment and we felt directly like we were at home. Especially the backyard is very beatiful (you see it on the picture). Unfortunately, we didn't have the time to spend it there, because Amsterdam itself is so fascinating! After the introduction she left us, with some notes like "Best things in Amsterdam", description of WiFi, TV and a bottle of wine! Thank you, once again!
The location of the appartment is good to get into Amsterdam (just walk 3min to the tram station, take the tram und exit it in Amsterdam :) Like I said, also parking is no problem, she will help you ;)
When I visit Amsterdam once again (and I will), I will look at first, if Maartje offers her appartment.

Greetings from Germany,
Raffael