This is basically the Cadillac of international hostels. Free breakfast, free bed linens, free towels, a great bar and amazing reception- no joke this is the best hostel I've been at in the world.
I loved every bit of my stay here, but what put me over the top was the curtains around each bunk. As a very private person, this was INVALUABLE. A couple nights I literally called it a "night in" where I watched Netflix and drank in my very private bunk.
Anyway, I could gush more but I'll just say STAY HERE if you're in Montreal and want to be downtown. The location is AMAZING for getting to the more touristy areas, but you're just a hill away from several other neighborhoods.