Disclaimer: My first and only experience at Quindici was at for a NYE supper. The table d'hôte menu included a 5-course meal.
Quindici is located in the heart of Little Italy almost facing the famous "Milano's" grocery store. Interestingly, the restaurant was selected for us by newly established in Montreal italian.
The food was fresh and very good, but stayed within the standard norms of stereotypical italian recipes. There were some slight twists on classic dishes (such as the ravioli stuffed with beef and simmered in a beef reduction sauce). The dishes were served at the perfect temperature and did not have a long wait.
The service was great. Waiters were respectful and were constantly buzzing to make sure everyone was satisfied. The owner passed around party hats, necklaces and plastic whistles to add to the ambiance.
The decor is very fancy and new. It does not look tacky nor cheap. There was live music. The bar offers cocktails and has a italian expresso machine. Parking is easy to find in the evening in the area. I cannot comment on the price given that I was attending a NYE event with a fixed price, but I can assume the prices fall into the averages of fine dining restaurants.
In all, Quindici is an upscale italian restarant which caters to an adult clientele 30 yearsold and older and offers a great fine dining experience.