This place is pretty much as advertised.
The host is very quick in responding and very helpful. The house is well organised and all supplies are available. It's a very nice space in a great location.
The second bed has a very low ceiling, but this is clear from the description, and did not create any problems.
Most of all, the location is excellent. Right across the road there is a nice coffee shop with breakfast options and a great atmosphere, and about 5 to 10 minutes away you are in the middle of Castro street, which has a great atmosphere and plenty of facilities, or after a slightly longer walk you're at 24th street, which has many restaurants, bars, etc.
At Castro there are also good public transport options - and in fact, a bus passes by right at the apartment.
Highly recommended!