We stayed there for two periods of 3 nights, separated by a trip to Providencia, during April.
The owner Gonzalo is a really friendly, helpful guy who will help out with local arrangements, e.g. buggy hire, tours, etc.
No problem leaving some baggage there when we went to Providencia, there is even a balance for checking bags for the flight check-in allowance of 10 kg!
There is a very well equipped communal kitchen and dining area, and also a drying area for clothing.
Location is in a nice secure residential area very close to the coast road from El Centro to San Luis, with nearby grocery shops.
It's a bit far from El Centro, 15 - 20 minutes walk, but that's not really a problem since there's a bus stop on the coast road just 200 m away (or stop a taxi).
Highly recommended!