i love my u360s if you want a stick that can do it all, they are the only choice. THey work excellent in 8 way, 4way, 2 way, 4way diagonal..etc..you name it, it does it.
i cant say that it is the perfect stick for every application, but it does kick some serious butt. i still prefer the feel of a dedicated 4 way stick for 4way games, just due to the feel of having a physical restrictor, but i can honestly say that i feel that the u360 performs as well in 4way games as the dedicated 4way sticks i have used...sometimes better.
they are a little pricey, but worth it.