I'm seriously considering buying one. I like the sound clips I've heard of them and they seem to get good reviews. Does anybody have one? What are the good things and bad things about them?
Crate makes the cab shell.

Blackheart is an amp brand on it's own.

Which black heart are you looking at? The Hot Head? Ant? Little Giant?
Peavey 5150
Mesa Mark IV
Mesa Single Rectifier (Series 1)
Fender Custom Shop Tonemaster
Roland Microcube

-Whitebox OS 1x12
-Port City OS 1x12

Digidesign Eleven RackAxe Fx Ultra