Very good location to walk to the city center or to go by metro. The apartment is located in the heart of Malasana, a very lively neighborhood full of small bars, cafes, pubs, restaurants and whatever it takes.
The apartment is on the ground floor and directly on the street. The windows are located exactly at the street level so it is not very pleasant to keep them open and the noise coming from outside can sometimes annoy during the sleep.
Space is enough for four people for stays of few days. Cleaning could be better but still more than acceptable.
The maintenance, especially the bathroom, should be improved: the sink tap was unstable and disassembled from the sink itself (even if still working), while in the shower, which is very tight, the ceiling shower head was not working and we had to use the manual one. Is summary, the stay is ok, even if not a luxus one, but in my opinion more or less acceptable for the required price.