Hart House, being an older building, has some temperature issues.... notably, the furnaces make some of the rooms way too hot in the winter. Aside from this, there are a lot of great perks to the building. Quiet rooms to study in, free drop in gym classes, free weekly events like mindfulness meditation techniques... I go regularly for Dustin's boot camp class (the best! Popular and crowded, but a great challenge), but there's a great variety of classes to choose from. Free for all U of T students.