I used to have this on vinyl and would put it on just to annoy my parents. I annoyed the neighbours too and turned it up loud when To hell and Back started. The riffs are nothing much and are kind of droning and anyone could play them but nobody cared. It was the blatant evil and the negative attitude that appealed at the time.
Venom are a product of their time and nothing could touch them but these days they have been surpassed by black metal acts churning out of Norway. Of course Venom were not as serious as the new wave of black metal but it was accepted at the time and metal radio shows played them to death.
Black Metal was one of the more memorable tracks, and the vocals were always strong, at times echoed, but always angry and aggressive growling perdition and purgatory. There were no lead breaks and they were like Motorhead revved up to the max.
I have long outgrown this music now but I wore this album out in the 80s. I have to give them credit for starting their own subgenre in Black Metal. They are legendary and this is one of the icons of metal. Impossible to ignore if you are into Black Metal.