With this mouthpiece even unexperienced player (let's say intermediate lvl like me) can reach dirty, rocky, funky sound almost for free. But please bear in mind, that it requires quite a lot of effort to play nice, clean tone (mainly with harder reeds for powerful tone).
So if you play in rock/ska/funky band, and one mouthpiece is usually enough for you, this could be definitely the one. Try it :)
If you switch genres a lot, and you don't/can't practice or rehearse daily like me, you could be little bit trapped, because great sound for rock band is probably not the best sound for orchestra, and regular usage of more mouthpieces requires some regular practice time, I'd say :]