Just because a gym is dirty, hot,lacks ventilation and smells doesn't mean it is hardcore
Those are some of the qualities of a "hardcore gym". I like to add, dust, chalk, grease, and duct or electrical tape on the seats, or preacher curl pad. Weathered belts, head harnesses. Dead roaches, wasps, ants, and assorted beetles in the corners, near the windows, and in the bathroom.