The New York Mag (or NYT) once wrote that Spanish was the new French, partly in reference to the proliferation of Tapas places throughout the City. We could apply this trend to Montreal also, but with different proportions of course. Out of this comes Pintxo: one of my best culinary experiences in Montreal. I went there once and it will leave a unique memory.
Aim for the Pintxos directly. You will find a wide range of flavors ranging from goat cheese cherry tomatoes to more original foie gras tapas. And you won't be worse-off ordering every single one of them if you're a party of at least three. Moreover, there is a descent selection of wines which will definitely match any of your food choices. All of it for a price reflecting its quality.
But Pintxo is not only about food. It is the charm of such a cozy spot ironically situated next to Montreal's most active neighborhoods. You could even walk in front of it and not notice it, its coziness and simplicity being major parts of its charm. Once inside, I recommend seating in the left side of the restaurant if you are looking for a tasteful and romantic diner. Bigger parties should consider the opposite one.
Unique.