I like the looks of the amp. Dave's always gone for a nasal tone, it matches his voice really. I dig it with Megadeth's music, it snarls in a good way. It's all in the EQ, I'm sure you can get sick tones from that amp. Andy made it sound amazing!
All I know is, I'm loving my HD 147 and I'm not looking to haul tube amps with me to gigs anymore.