Guy's is a charming hole-in-the-wall barber shop/hair salon (it seems to be going, aesthetically, for something between the two). It's easy to miss, sitting a few storefronts off Bloor, but there's usually a little folding sign sitting at the corner of Bloor and Durie pointing the way during business hours. It's got a nice stained-glass window sign, which is a welcome surprise.
There are kids' cuts for $10, and student cuts for $13; even an adult (men's) cut goes for under $20, and that includes a wash, so the value is certainly there, as well as the quality.