This place is really good. It is very clean and tidy as you can see on photo. Bed was comfortable for me and I was happy to have a heater because nights were a bit cold in February. Also you should remember that this apartment is under the roof so it can be tricky to stay here if you are tall or have heavy suitcases but I had read about it and it wasn’t any problem.
The apartment is very good located not far away from Atocha rails station (you can find parking here, not very cheap), park, botanical garden, Prado museum. You can found a lot of supermarkets, shops, cafes and restaurants nearby (one of the really good restaurants is just around the corner, small one but very nice with great food).
I haven’t met Paula but she answered all my questions very quickly and was really helpful.
Highly recommend this apartment!