Shield K1, gamepads? Hi everyone!

I've used 2 gamepads that I already had at home:

Snakebyte, works the axis sticks but the buttons don't.
Another one that I don't its name :D worked well but the trigger buttons don't work... and that's a bummer for most games... :D ...

Any tips on cool gamepads that work 100% with my beloved K1? :D
