So I've been here a LOT... and this place has really grown to be super popular. You may need to call ahead to reserve, especially for larger groups, but my friends and I have never had a problem with drop ins.
For $5, you get unlimited play time with a nice ever-growing selection of board games available. They have really simple kid friendly games to really nerdy games that take forever like Game of Thrones themed Risk.
For food, they have a nice range of espresso drinks, bubble teas, and regular teas. I always have to get the large BBT because it's so good the regular size is not big enough. They also serve a few sandwiches and chips if you're feeling hungry from kicking your friends' butts at Catan.
I really like this place. They're always super friendly and it's just a nice central place to hang out with your non-downtown friends. It's very TTC accessible, and there is parking on the residential streets around the area.
I think the optimal group size is 4-5 people. Like I said at the beginning, you might need to either call ahead, or be prepared to wait a bit for larger groups on busy nights!