David's apartment is in vintage style, very stylish, balcony in the living room is full of flowers. If you like vintage, your gonna like the flat. It is located in a very nice area, close to all of the important places in Barcelona, close to metro lines and airport bus. There are plenty of good places to eat all around - you can get good specialty coffee in 5 minutes walk, you can find tasty churros, tapas, bars and some restaurants full of locals, all really close to the flat.
You can use bathroom (with a lock) and kitchen to make breakfast, and put anything you need in the fridge.
In the apartment lives 3 people (and 2 lovely cats), they're all nice, respecting your privacy, helpful if you need anything. We got chocolate from them, which was very nice!
Only thing we didn't realise before arrival is that smoking in the apartment isn't forbidden, so you can feel the smell of cigarettes, cause they smoke inside.
Also floors weren't very clean and there were some dust somewhere, but in general we liked the flat and our room.
If you're going to Barcelona in winter or in the beginning of spring remember to take warm clothes to sleep! It's quite cold in these time of the year.