Raul's place is fantastic! My friend and I had an awesome time during our stay.
Location: It's in a very safe and ideal location near El Retiro park. It's a short walk from the train station. Also, there is a Starbucks really, really close with a taxi line just outside. We easily popped down and grabbed a cab back to the airport. Very easy. The driver charged us 30 euros (flat fare). There were also tons of cute restaurants and shops nearby. I found a really cute store for souvenirs and little gifts called La Intrusa. It's really near the apartment.
Apartment: Raul's place is awesome. It's got wifi, a Nespresso machine, full kitchen, 2 bedrooms and 2 bathrooms. The art is very cool! It's got lots of interesting pieces all over. It was very clean, and he provided shampoo, body wash and even had some extra unopened toothbrushes. He thought of everything.
Communication: Raul has been very responsive before our trip, during and even after. He even allowed my friend to check-in really early one morning. Also, I locked my luggage inside the apartment on the last day and had to leave for an early flight. Ugh. So, Raul mailed it to me! He has really gone above and beyond to help me.
Everything about our stay was fantastic. I highly recommend this apartment.