To be honest, the first season is kind of a mixed bag. After watching the whole thing I found a better appreciation for the season as a whole, and a lot of the WTF moments that crop up throughout have an explanation in the end, even if it is a bit of a magical handwave.
Like I've said before, there are better shows, but there are also worse. The final three episodes are the best of the season. Before that, most of the episodes are "meh" to "okay."
Being a Canadian show that's set in Canada makes it somewhat unique. Hey it's not very often on TV you see fictional characters representing CSIS or the Canadian Forces.