I'm happier now than I ever have been since I was a child, because I have my intellectual integrity back and my conscience isn't constantly bothering me for promoting stuff I know is false. I still get nagged by my JW family to do JW stuff, and they just don't seem to be able to take a hint, but that's merely annoying. (For now.) Also, I look forward to the weekend for the first time in my life, hehe.
The transition between "JWs are right about most things" to "JWs are wrong about many things and are in fact worse than many other denominations" was stressful, but prayer, meditation and research got me through it. I only told one of my non-JW friends about what I was going through, but that helped a lot.
I feel really bad for people who have a sudden realization and confront the elders, and must instantly choose between integrity and their whole social world, with no time to develop non-JW friends... at least they don't have to put up with as much nagging, but it must be a small, if any, consolation.