HOrses for courses Matty boy!
Lamb Of God, if you like metal, and like a bit of prog'ness, are an EXCELLENT band... Technically, as in technical ability and playing, they are the bollocks - whether of course you like the music or the style is entirely dependant on your musical tastes....
Mine are very broad. As previously mentioned, my playlists on random have me listening to Brahms and Mozart, followed by Lamb Of God or Slayer, to Miles Davis to Metallica, to Christina Aguilera to Cradle Of Filth, to Cream Anthems to White Zombie, to Puff Daddy to Led Zeppelin.. You see how I roll?
But you CAN'T call Lamb of God shit, as as musicians they sooooo aren't. YOu can say you don't like their music, you can even say in your opinion that kind of music is shit, but you can't take away from them that they are masters of their instruments and technical ability....