Yay! An Irish pub that actually feels Irish. This place has been built into an old stylized building of sorts that carries with it a very authentic feel of a pub that you'd find on the isles. There's none of the trappings of the usual franchised pubs, but a very warm feel and friendly atmosphere.
The kitchen throws out what could be termed North American pub food as well as the traditional Irish. I say North American as I get the feeling quesadillas are hard to come by in Dublin. Regardless, fresh ingredients prevail and the food is definitely substantial and worth a look.
What makes this place is the differing floors, nooks and crannies that are available to you. Up the stairs you're able enjoy some smaller conversational areas with a pint. In the past they used to have full wood burning fireplaces. Now I believe these are replaced by gas stoves but nonetheless, still nice to be in front of with a Guinness.
Oh, add to this that the Toronto Ghost Society (http://www.torontoghosts.org/whelans.htm) seems to think that the place may be haunted. They maintain that the ghosts are of the Casper variety and not the scare-you-mid-sip kind. They're probably just poking around trying to find a darts partner. Please, where possible, indulge the spirits.