I have no idea how you've lasted longer than a little while with the Tekken 6 stick. I murdered the shit out of that think in a couple of weeks.
If you don't mash and smash, it can last a bit... especially if you're not used to something like a TE... but it's easy to start feeling the buttons stick and such... I keep it around to let company use if we play fighters.
Yeah, I don't know if it will have the best quality but that's fine by me. I'm not too intense in fighting games and the only current stick I have is the wireless Tekken 6 one, which I know a lot of people said sucked. But mine's lasted for a while now and I feel that I do fine with it so I'm sure this one's better then that. I've mainly used the SF4 and MVC fightpads over sticks though, but I like having options because certain games feel better with each. Luckily, these games always have adjustable controls so I just set them to all be similar anyway, but I do know what you mean how there's a big difference from MK and Capcom games.
I was talking more about MK9 vs previous MK games. Yeah, it's still 4+block instead of 6 attack... but the moving of the punch button and the change of it to front/back kind of screwed me up -- especially since uppercut used to be down+, roundhouse was back+/\, sweep was back+O... changing some of those really fucked with my head at first.