I stayed in Paul's place with a friend for two days.
We felt very welcome by Paul in his "bonito apartmento" which is nicely decorated, very clean and has nearly everything you'll ever need.
It's in a fantastic location close to the old town as well as more practical things like metro, restaurants & supermarket.
Although our Spanish is almost non-existing it was great fun to meet Paul who was really helpful and - thanks to working across the road - always at hand!
With "Spanglish" as our common language we managed and found his taste for recommended restaurants to suit our own very well.
The lounge chair can be converted to a single Futon and the 140x200 bed is rather soft.
The kitchen is well equipped (inc washing machine) - only thing we'd have wished for was some salt, pepper, oil, tea as kitchen basics but for two days it wasn't that crucial either.
All in all we both highly recommend it!