First time I ever heard this record, I was really high. Like insanely paranoid and high. Needless to say, this album terrified the shit out of me. I vowed to never listen to it again.
I listened to it again years later, totally stone sober; I finally understood what it was This Heat was trying to do- completely deconstruct the layers of what can be considered a "song" and break it down to its basest, most common denominator: noise. Pure, awesome unadulterated noise (and its relative constituent parts). It's probably the most avant-garde and experimental of the whole early-'80s "post-punk" scene; that's probably why I love it so.
I hope you give it a chance to terrify the shit out of you too...