...and now I'm returning a portable air conditioner. Turns out it'll blow out the circuits no matter what room I plug it into. (I didn't find this out firsthand, thankfully, but was informed by my landlord that I would experience that result because of the overwhelming amount of power the thing would be drawing.)
Why any company would make something that is supposed to be convenient into something that clearly has a woefully limited use is really beyond me.
The plus side is that our wall unit was apparently broken (I thought it just sucked by nature), and now that it has been fixed, it does a better job of cooling the previously unreached rooms, but still requires me to leave my door open and point a fan my way. So, once again, I'm left with either closing the door and sweating my ass off or sacrificing my privacy to the world's most annoying roommate for the sake of being comfortable.