Lets see...
1.) Worst dash in the game..
2.) Very poor neutral game.
3.) Projectiles are crap unless FRC,YRC or PRC'd
4.) Very risky fighting style with no Damage reward ratio per risk!
I can go on n on.
That being said. He is viable in the right hands, but I see many picking him up cause he is a new charcater (and cool loking), only to drop him IMMEDIATELY when they realise he aint the magical uber badass that he looks like or they dreamt of.