My wife was talking with her firend who has an infant the same age as ours, 6 months. They were both discussing how their JW family are cold to them and their grandchildren, having little to do with them, but the WORLDLY family was involved, visiting, giving of time and material gifts! The JW family is too wrapped up "pioneering".
They are WORSE than average, everyday people, and the good they do is either to look good, get brownie points. The genuine good they do would be done by them wheather they were JWs or not, and the JWs divert the charitable part of their heart into "pioneer work".
There is nothing unique to JWs that is good. Any kind and warm JWs are that way IN SPITE of the cult, not because of it.
Some have quit drugs, prostitution or drinking by becoming a JW, but this is not unique to them and the same result could have been attained by joining any other religion, or rehab.
They do help you to feel comfortable speaking in public and reading well because of the TMS. Thats all I got.