I think Rask's summed it up (although I personally do quite like the band) They can all play their instruments (I've watched Daron (guitarist) play over at guitar.com (%$$^£!...ahem!) and he definately can play. A lot of their music has wierd (well, wierd to westen music) time signitures, 7/4 or 18/12 or really crazy stuff like that...so, not only can the drummer play in these, but play in time...I reckon he's a pretty good drummer, yea...
Also, I have it on good authority that they great live - gotta gain points for any band...
Just my two pence worth...