The apartment has everything you need, it was clean and in great location in the city center so we walked nearly everywhere. Also, the metro stations are a few minutes away so when we got tired walking, we took the metro.
The only minus was the street noise the whole night and early morning but that was something we have expected due to location so we didn't mind a lot. After all, Madrid is the city that never sleeps, right? :)
Alberto was very friendly and he responsed to our questions fast.
We recommend this apartment.