I've just started to take this bus, since I'm taking a couple of classes in Liberty Village. From Ossington stn, it takes less than 10 minutes to arrive to my destination.
Buses come every 10 min. or less. I take it from one short point, to the other, so I always easily find a seat.
I'd recommend visiting the ttc.ca website to check route times before heading out; expected times are pretty true.