Debating on getting a fighting stick for Tekken 8. I kind of hate playing fighting games with a controller, and the d-pad is irritating the shit out of my thumb.
I've been looking into it also, er...well, I have an older Mad Catz Japanese stick, but it would be tremendously handy to have a Crown Korean style lever, or maybe just a straight up leverless style ala Hitbox. I've tried out a leverless controller and it feels kind of strange at first, but there were some execution things that were immediately apparent in how easy they were or could be to do.
I don't have Tekken 8 yet, but it's looking pretty good.