Machine Head is a pretty good band overall, but certain people like to bash them because of their period of following trends and putting out a few bad albums. Burn My Eyes, The More Things Change, Through The Ashes Of Empires, and The Blackening are all good heavy metal albums, although nothing renewing. It's just good old plain heavy metal. It is interesting of course to note that progressive and technical metal is somewhat of a new trend nowadays, so they could still be accused of following the current trend which has shifted from nu metal to metalcore to progressive metal, even if this trend is miles better than anything before it.