Here're the positive points about the place:
The place is only 3mins away from Den Haag HS station and even to Den Haag central station, it takes less than 10mins. It's pretty quiet also at night. There's a small shopping mall which has a supermarket in it.(I recommend you to go to Albert Heijin in the north side of HS station though!) It has a kitchen, shower, bed, and sofa, basically everything you need. The place is large enough. The Airbnb page of this place shows wrong information regarding to wifi. But when I asked her by a text, she told me the right one.
However, there were negative points as well. First of all, unfortunately it was quite hard to contact the host. I understand she was busy but she finally replied 1 week later after I asked Airbnb if they can contact and tell her to reply me back. Additionally she changed the checkin time twice which made me pretty confused because I've booked a train ticket to there in advance. If she didn't change it second time, I would had to wait for an hour outside. But it was nice of her that she messaged me and told me to come the place. As for the place itself, I found pretty a lot of dusts on the floor especially close to the bed and in the bathroom. If you're a person who doesn't really care it, everything what the place has would satisfy you. One thing that I think many guests care is the curtain. It's so thin that you literally can see people walking outside through it. It doesn't really make you feel your privacy is protected. Although I saw many buildings in the Netherlands even don't have curtains so it may be common.
It has almost everything and the location is good so the place is pretty nice to stay at for a short term. There was no problem with checkin and checkout. I just wish I could communicate with her more smoothly.