When I was 16, I tested at 160+. I've taken several other unofficial tests since then and I always max out whatever score it goes up to (140+, 130+, etc).
I can confirm that it doesn't bring you wealth or friends or, quite frankly, it doesn't automatically give you good grades nor does it make you the most talented student. There are people with solidly average IQs who are light-years better at my job than I am.
PRO - I'm a nerd who likes to learn a lot of stuff very quickly, and it's usually very easy for me to do so. So, I get more fulfillment out of my life because of it.
CON - Nobody on the internet ever believes me, and I'd sound like a narcissistic douchebag if I ever told anyone in real life.