Carrot D.
Yelp
This place made excellent cocktails (something that was actually difficult to find in the whole of Spain.) They are all about their Gin and Tonics out there, but not cocktails.
We encountered friendly service here. Folks in the City of Madrid, unlike the rest of the country, just weren't very engaging or interested in talking. But these bartenders were great--what you generally expect.
Tried several different gins that we can't get here in Chicago. All the drinks we had were great--expertly & beautifully prepared. Chatted with a young woman from Leeds, England and enjoyed the vibe there.