Whitey Bulger was a very interesting criminal. Certainly very intelligent, he was one of the few careers crims to make a fortune and get out even when under detailed law enforcement investigation. AS most would know, he inspired "The Departed".
Short of Bulger's own autobiography, Week's book is likely to be the closest we get to the true story Bulger's operations, how he made his money and how he stayed ahead of the law.
This gives a non-glamorous, no-holds barred view of the reality of organised crim in Boston. lots of interesting detail on his relationship with the feds, the IRA and various other organised criminal outfits.
So far, so good.
However Weeks certainly views his old colleague through rose-tinted glasses, but doesnt have the consistency to paint a convincing picture. For example he states in numerous places that "Whitey didnt like to use violence - he only killed people when absolutely neccessary", yet a few pages on he would say "I dont know why Whitey killed X, maybe he just didnt like the guy"..
Having said that, if you are interested in the social/criminal history of Boston or Irish America, or American organised crime in general, its a must-read. Just dont expect it to be impartial.