I have one... works fine since I drilled it out. It's the low-flow toilet I can't get around. Might as well poop out the window. It'd be less trouble.
Yeah, my showerheads were acquainted with the 3/8 drill bit, too.
Now, that window thing would get counterproductively chilly, especially if the wind was wrong...
Not to mention the flies when the weather was nice.
So, flush twice, it's a long way to DC!