Nice review!
I love mine and also use the upside down method. I got it to take camping and then ended up using it at home because I think it makes the best coffee.
The reason being is that the hot water spends just the right amount of time with the grinds before being pressed out. A standard drip machine pours good coffee at first and then the grinds get more and more burt as time goes.
RE: Aeropress - Manual espresso/coffee press review