I went here on a Saturday with one other person. The restaurant was pretty full, we were greeted quickly and walked to our table. However, we sat there for a good while before anyone gave us menus. Then we got the menus however the server did not go over any specials and kind of seemed like he was in a hurry to get away from the table (which happened all night).
When he came back we ordered drinks and appetizers. The drinks took forever to come and actually arrived after the appetizers. I had a sangria that was decent, but a little watered down. We had the bruschetta and arancini for appetizers which were mediocre. The risotto balls lacked flavour. The spaghetti carbonara was a good pasta and very filling and flavourful. My date had the tagliatelle with braised rabbit and it was very tasty as well. On to dessert which was the chocolate almond cake with gelato on top. It sounded better than it tasted and left much to be desired.
I would maybe go back just for the pasta but there are so many other great spots in Calgary that I doubt I'd choose Sugo again. Good pasta, mediocre everything else.