I spent 3 nights (05/2016) at Jan Willem together with my girlfriend.
The apartment is very nice and clean. It has a balcony with an amazing view to the sea.
We lived in the same apartment like him, but had our own bedroom with a really comfortable bed.
Also Jan Willem is very friendly, he offered us all his goods for eating, personal hygiene and so on. He also borrowed us 2 bikes for free.

For one of these 3 days, he brought a dog into the apartment. This dog is also very cute and it was really fun to play with him :)

By bike, you need round about 10min to the centre. But also, there is a good connection by bus and tram.

I really can recommend this :)