Our stay at Siem's boathouse was great! We arrived 1 one hour late (Sorry again) due to our flight so it was Siem's mother who welcomed us and showed us the location.
The boat is lovely, clean and spacious and the decoration is very nice! We really had a great time, we rented bike to go to the city center and it was approx 30 minutes to go to the city center (and it's so nice to cycle in Amsterdam!) Thank you Siem, we will definitely come back!