First of all I would like to say how great Angelina and her Father were. Our flight was delayed for over 2 hours meaning we didn't arrive at the apartment until almost midnight, Angelina and her Father met us there and made us feel really welcome. There was information in the apartment about good places to eat, Angelina left maps of the City and metro which really helped.
The apartment was lovely, very clean and modern and is on the first floor which is handy when carrying suitcases. It is very central with lots of lovely places to eat, our favourites being Pum Pum cafe which just around the corner and has the best breakfasts and Basca which is up the the hill, we also went to an Indian restaurant right next to the apartment. All the main places to visit (Gran Via, Retiro Park, Museums, Palace) are no more than 30mins walk so we didn't use metro but if you wanted to the metro is just 2 minutes away.
There were lovely little touches too such as a bowl of fruit, olives, cherries and snacks, plus milk, yoghurt drinks in the fridge and lots of things in cupboards.
I would definitely recommend Angelina's apartment and definitely stay there again.