We stopped in here for a few beers on our very first night in Toronto, and we were pleasantly surprised. It was a very quiet Sunday night, and we were some of the only customers in the bar around 10pm. This worked out to our advantage because we had unrestricted views of the Sunday night NFL game on several huge screens, and bar service as soon as or before our glasses got empty. The bartender was super cool, and also recommended a few hot spots for us to check out while we were in the city (some of his picks were spot on).
As far as the bar/restaurant goes, I totally love the decor. There is a giant "tree" growing up through part of the bar, which I really wanted to take a picture of but the lighting just would not cooperate. It's full of a lot of the usual stuff you see in Irish pubs these days, but also many that you don't, including full sets of armor and some awesome old stove looking thing. They definitely went outside the scope of cliche wall art.
I wish we had come back here again maybe to eat or get more drinks, as I definitely feel this has the potential to rank up there with the better Irish themed places I've been to. So consider Grace's to be a 4, with the definitely possibility of a 5!