I'm using them for 4-way games right now, as I haven't yet built my full panel (which is going to have a Ms. Pac-Man/Galaga reunion stick for 4-way games). So far, so good. I like the handling, and I don't usually hit diagonals when I don't want to, but there was a noticeable improvement when I changed the stock handles for the SlikStik ones.
-- Chris