Alex has a cool apartment, not too far from the centre of town and very convenient to reach by tram. If returning late after a night out, taxis can be expensive from the centre of town. Leidseplein is close enough and a taxi home will cost about 10 Euro. The apartment can comfortably accommodate 4 people, two couples or friends sharing a double bed and a large sleeper couch, he has a good quality single air mattress which is great for camping but if there were five people staying over you would have to draw straws for the one that has the air mattress. We stayed 4 nights and had a great time.