A friend and I went to Arriba during winterlicious for dinner. I was very happy with my dinner, which started with a light salad of grilled mushrooms and beets. For main course, I had salmon, served with grilled veggies (not underdone like some 'fancy' restaurants) and potatoes. The sauce was a light lemony butter sauce. The salmon was grilled perfectly, and was very tasty. I can't complain about the dessert either, a mini apple crumble pie that was served warm with a scoop of delicious vanilla ice cream.
The restaurant is in the lobby of the Marriott attached to the SkyDome. Our table overlooked the baseball field (which was empty and seemed to be undergoing maintenance as it's February!). It would be really cool to have dinner here and get to see a bird's eye view of the baseball game.
Overall a great dinner and dining experience, but we were sad that we couldn't take the Path directly from the Marriott lobby to Union Station to avoid the Canadian winter!