I'd like to echo what Ralph said as I've played the very same amp. I'll also add a few thoughts : Yes, a modded pissed off Marshall vibe is what this amp is about, albeit with the ability to get crystal clean too. It does have some VHT qualities, mostly in the articulation and authority. But it doesn't neccessarily sound like one. Personally I don't really dig the VHT voicing BUT I really do like the Fortin voicing. So to me its more VHT like in its articulation and focus yet more Marshall like in tone. Thats what I want to hear in a "modded Marshall" type amp
And to be clear, this amp can do metal easily, both rhythm and lead. Its absolutely tight and gainy enough. But I think the amp is more suited for the virtuoso type of players like Gilbert, Sykes, Lynch, etc because of its tight yet FLUID tone. Its that school of metal. The upcoming Natas amp will be focussed on the other side of the metal fence, the really heavy shit like thrash, death, technical extreme metal, etc. It will most definitely NOT be a scooped to obliveon amp like the Ubershcall or out-gain a 5150. Rather, its going to sound good

Its just going a have an outright vicious, angry quality that has not been realized in any other amp to this point. I'm into some of the really heavy bands out there but almost all of them have horrid tone. I truly believe this amp will fix that