Once you've climbed all the way up to Castello, you'll be surprised to come across this quite small two-room establishment. It's a wine bar that mainly serves Sardinian wines, without being afraid to go international, with bottles from Chile, California or Australia, to name a few. Sardinian hams and cheeses are devised to go along with your goblet, but you should also try a slice of pecorino cheese with a spread of wine jelly (a sort of home-made grape jam). This said, the highlight of this venue is live jazz at least twice a week, but dates vary a lot, though the sessions start invariably around 21:00, definitely early for Cagliari standards. Anyhow, you're better off giving Antonio, the manager, a call to double-check.