I can say that all alcoholics are miserable despite any exterior appearances to the contrary.
Sab, with respect, this kind of sweeping, absolutist and dogmatic statement would be readily "at home" in Watchtower literature. E.g., "Brothers and sisters, be assured that all the churches of Christendom are miserable despite any exterior appearance to the contrary because, unlike us, they don't have the truth".
Sweeping, absolutist and dogmatic.
As newchapter said, it is about validating the varied experiences people have had as JWs: Yes, undeniably and irrefutably people have been seriously and tragically harmed by the Watchtower organization. But not every single JW or family of JWs has ended up personally unhappy or tragic. And that is not to defend this organization but to acknowledge not everyone has or has had the same experience.
The question of whether or not you as a JW were happy or otherwise is an important one. Yes, it is nowhere near the full and total story and it does not justify the Watchtower's atrocious policies. However, to sweepingly deny that anyone could have ever been conceivably happy in the organization is to commit the self-same error of thinking advanced by the Watchtower in its ignorantly sweeping statements about "genuine" happiness being the sole preserve of Jehovah's people.