Unlike some comments I read, I'd say the tour is t...

Unlike some comments I read, I'd say the tour is totally worth the price. The guides are nice and entertaining, you can tell they love their job and they love the brewery as well. You'll get some infos about Alexander Keith's himself, about the history behind the brewery and a bit on how the beer is made. You'll also get the chance to taste some of Alexander Keith's beers that aren't available elsewhere. I'd suggest you eat before (you'll get 30oz of beer to drink in a somewhat short time).
It's definitely an activity I recommend if you are in Halifax.