★★★★★☆☆"Finally got around to getting this one." (bardberic, )
★★★★★★★"THE most important thrash metal album ever!! While the following album is definitely better, I highly recommend this!!!" (J-Man, )
★★★★★★★"If you're looking for the progressive moments, focus on the Battery intro & structure, the title track, The Thing that Should Not Be, Welcome Home (Sanitarium) and of course, the fantastic Orion." (Mike, )