I had a Bones for a couple of months. It was a solid rock amp. Like late '90s to early 2000s radio rock. Matchbox 20, Stone Temple Pilots, Pearl Jam, Foo Fighters, RHCP, Bush, Collective Soul, 3 Doors Down, Live, and Big Wreck (who actually does use a Bones). I never boosted it, but I think with a boost it could get more aggressive.
I wish I had kept it because it did have some really great sounds, just not as angry or pissed off as I wanted it for most of what I play. But yeah... worth holding onto in hindsight. It is certainly the best built Fortin amp I've seen to date.
As for the Evil Pumpkin... it just sounds generic IMO. Same sounds from a Randall Thrasher/Satan or even one of the Laney Iron Heart series of amps. Not worth $3K, let alone whatever they're going for on Reverb these days.