I will certainly use the CTrain once it's ready to go (5-10 min walk). I mostly bike year round, and drive/carpool 4-5 days a month and take the bus 1-2 a month (it is the slowest by far from where I live).
It will be so nice to have another alternative on the big snow days or the sub -20 days and I don't have the heart to get outside. On the worst snowy/icy days on 17 Ave, it can take ~30-40 mins in the car just to go from Simcoe Blvd to Sarcee Trail.