I sat on that seat on a flight to sydney. I do not recommend it. Not only do people congregate there, the window seat is terrible as it doesn't let you stretch out your legs straight. The exit door sticks out, so you either have to stretch your legs towards the guy next to you, or if you're flexible enough, have your body angled in a v-shape, so your feet is resting higher than your waist line.

it's really awkward i found.