The Gates Of Janus is a very peculiar read. The opening section of his kinda corny and po-faced 'philosophy' does have the odd section where you get carried away by his invocations of ubiquitous, world-upside-down injustice and feel infuriated on his behalf, and he's certainly not an untalented writer. During the second section of bog-standard serial killer true crime schtick you are looking out desperately for the asides about his own crimes and contacts he had in the prison system with the killers.
Sotos's afterword is incredible writing, absolutely devastating, one of the best things he has ever written, and of course inspired hate mail from Brady.
I am told the 'real' Brady book of autobiographical material is in the hands of a long-standing Manchester underground publishing firm beginning with 'S' and to be marketed following his death.