The windows, the doors, the washer/dryer. The windows don't close properly. In the summer, we always had stink bugs in the apartment, even though all the windows are sealed . In the winter, you can feel the winter winds whipping into the apartment because of these windows. The lack of efficient windows causes my utilities to go through the roof. I've resorted to turning my heat on AND plugging in the space heater for fear of freezing to death in my sleep. The washer is tiny; dryer is useless.