If you know what you're doing, Seanachie can be a decent place, but it takes a couple of visits get the lay of the land.
The service is hit or miss, with some of the better servers working during the day usually. They will give honest opinions on food which helps because some of the menu is good (try the Boxtys) while there are dishes like their crab/artichoke dip that is simply a frozen disk of god-knows-what nukes in microwave.
They generally have some good deals on food an drinks, with the deals changing daily. Beer is average in price and they have a decent selection on tap- better than many places.
It is part of the "Calgary's best pubs" chain, so some things might look quite familiar, but it is a bar all it's own with a crowd that runs from the rich housewives from the neighbourhoods nearby to blue collars workers in for a drink to the employees o all the surrounding retail stores.
If you're around Signal Hill and are hungry/thirsty, this is an option to consider.