The truth is, I go to Queen St Warehouse for the music. It's always on point. If there was a dance floor at that place, people would never leave. The food is sub par (it's only $5 after all) - the quinoa salad and sweet potato fries were decent. The service is alright. And the beer prices seem relatively high since you're paying more for your beer than your grub.
So keep your expectations low and enjoy the music - it's a guaranteed 3-star experience.