Our stay in this apartment was perfect.
It's in a very lively neighborhood, lots of small restaurant. There's a shop opened 24/7 at less than 5 minutes by foot which is extremely practical. By foot you can access several touristic sites in less than 30 minutes, but there's also a subway station less than 5 minutes from the flat.
The sofa bed is huge and comfortable, there's an air conditioning unit! The apartment was very clean. No complaints at all.
The hosts were easily available, I had a response to my questions during the same day, they were very attentive that we had all we needed. They also were flexible about arriving hours, they offered us to drop our luggage earlier in the appartement, when we arrived the appartement was ready more than 2 hours earlier than planned.
I really recommand this apartment!