i have u360s, but being an adult, i dont feel the need to abuse them. a nice precision motion is far superior to large violent motions. i do know that when my wife plays anything with them, she treats them alot harder than i would like, and i have not had any problems with them. (when she plays pacman, the whole cabinet shakes).
personally i hate wico sticks, they are way too stiff. i just installed a NOS 4way wico in my donkey kong cabinet and i had to pull it out because you had to push really hard to use it. i like a stick that i can easily manipulate with just my thumb and index finger, without moving my hand...the u360 is that stick.