I was really pleased with it but I haven't blasted it out at full volume or unscrewed the back to investigate the construction.
I would also like to mention that it is my first 4X12" and so I would not be able to compare with other 4X12" cabs.
It does, however, sound much fuller and more 3D than my Orange 1X12" that I have in my bedroom for practice.
What struck me was the nice chime it added to the clean sounds and the extra depth and response with the distortion.
I was using my Tiny Terror through it (which I have now decided to name David Byrne for obvious reasons) in mono and the pairing with that seemed really good but as the Tiny Terror is more of a 'British' sound (it is essentially a Vox AC-15 with a modded preamp), like the peacemaker, I wouldn't be too sure that the Fallen Angel would work all that well (you might have to budget for some speakers to replace the Vintage 30s, unless you like them that is).