I think there are good things that can be said about being a JW and living by those "rules" does have advantages. I know of people's lives that have been changed dramatically for the better when becoming a JW and giving up booze, drugs, etc.. Sure they could have gotten that elsewhere . . . . . but they didn't.There is also the benefit of having a network of people willing to come to your aid in a crisis. IMO that is RARE elsewhere.
My primary gripe is the harmful affect being a JW has on personal achievement, ie, education and pursuing things that make one successful in life. One cannot give all of their time and effort to an Organization (see there, I did NOT say Cult) at the expense of one's own welfare without it having serious negative affects on their financial well-being and otherwise (even the matter of pursuing work that is "doing good" for "society". And then there are also the issues of being an "oddball" in society and the health risks (ie, blood transfusion ban).
But bottom line, there ARE some positive factors/benefits as a JW (IMHO).