This is a lovely apartment with lots of open space and really comfortable furnishings. The addition of the hammock is really special, and the location is brilliant, right in the middle of nice shops and trendy places to eat. It's also really close to a U-bahn, so transport isn't an issue. It's perfect for large groups, particularly families, and it's very clean.
The only downside for our group was feeling like we were treading on eggshells all the time. When I was greeted by the host he spent about 10 minutes staring into my eyes and telling me that if we had any parties or noise complaints that we would be kicked out, and that they'd involve the police if they had to.
It put a bitter taste in the mouth and meant none of us could really relax after 9pm in the biggest communal room in the flat, as apparently it was adjacent to the next door neighbours bedroom.
I completely understand that young British men have a bad reputation, but it's not nice to feel under suspicion when you haven't even put your bags down.
I would mainly recommend this flat to large groups in their 40s-60s who want to sight see and head to bed by 10pm, otherwise you might feel a bit uncomfortable - we probably would have picked a different place to stay if we knew we wouldn't be allowed to talk in one of the largest communal rooms after 9pm.