Just got this in the mail. The packaging could have been more elaborate (I'm thinking something along the lines of that double-disc digipack reissue of the first Crimson Moon album), but the sound itself is great. The Destruction System album actually has a slightly more polished edge to it sonically than Spectrum of Death; they did a really good job finally giving that a proper release. The DVD is about the same quality level as the DVD that came with the reissue of Altars of Madness, no real complaints.
These guys wrote some great music. The songs are constructed similarly to what you can hear on the first Morbid Angel album or the first two Death albums: verse/chorus on the surface, but in actuality moving towards narrative structure. I think they're considered thrash/speed metal by the masses mostly because of their usage of Vio-Lence style gang shouts; apart from that aesthetic quibble, I'd say that they fall squarely within the early death metal camp.