Pretty wide selection of streetwear ranging from your usual suspects to harder to find brands. Their website/blog does a pretty good job listing the type of stock they sell, so I won't get into details. But the third floor is currently a OTH x Vans pop-up shop and they do have a QS/Jordan account.
Definitely worth a stop by since it's right on the Ste.-Catherine shopping strip and it's a offers a more diverse range than the more urban-focused City Styles and Fake Store is just getting off the ground. You'll find the kiddies shopping here but also has offerings for the the well-dressed casual gentleman (and ladies as well).
To be honest, I was a bit disappointed that OTH is pretty much the only game in Montreal. I pictured the store being bigger and more kick selection - it's a solid store but doesn't hold a candle to other Canadian streetwear heavyweights like Livestock and the now-defunct Goodfoot/Nomad.