I've been lucky enough to stay in some excellent Airbnb's, but this one was a real favourite of mine for many reasons.
The space was really beautiful, with lovely decor and cool artwork. The outside terrace with hammock was a real bonus. The bed was very comfortable. The whole apartment just had a really great feel to it and I was sad to leave!
Location: perfectly located, nice and central. We walked everywhere but the metro is very close by too. 15 mins walk from main train station.
It's in a pedestrianised area, which is great as it means no noise/pollution from traffic. Lots of Indian restaurants in the street, but it's fairly quiet considering how close you are to the bars and restaurants.
Fruit and veg shop right next door, supermarket and a vegan health food shop just 2 mins away.
One tip: be very precise when giving your time for check-in. In previous airbnb's we have been used to giving an approximate time of arrival (as of course it's difficult to be specific when you're arriving by plane and you're not familiar with the local transport). We estimated our arrival time at 2 - 2.30, but we ended up arriving 15 minutes later than expected - consequently we had to wait outside for over an hour to get the apartment keys (this company manages a lot of apartments so the assistant had to go and attend to another apartment). So it's a good idea to be as precise with times as possible.