I went there with some friends on saturday. I did book a table well in advance. The mobile number they provide works only after 7pm. The guys overthere were quite friendly and nice. The service ok. Now the beers. Coming from Brussels, the land of the beer, I must say I am bit demanding. Well the beers were really good. They have a choice of 4 beers own produced. The pizzas as well were nice. One can choose the flavour (basil, saffron) of the base and a good variaty of sauces.
Overall, I recomment this place while in Sant Antioco. Enjoy it!