Under the right circumstances, getting free from the oppressive environment they create is amazing. I faded slowly and had a support system outside of it by the time I stopped going to meetings regularly. Since I have not been DF, the one or two JWs who I have friendships with are able to communicate with me without guilt. Most of my family are out, and the few who remain have cordial relationships with me, and that's fine.
So I was able to walk away and enjoy the freedom that comes from getting out, without having any of the stress and anxiety and difficult times that can come when you don't have a support system around you. And they will use your misery against you, making it seem as if leaving is the cause, instead of the way they treat you when you want to leave. And the worst part is that it is often the people you care about most who are leading the persecution against you. The emotional damage can be very bad.
But not having to rush home from work so that I can shower and change and get right back out the door to go to a meeting and then get home and scarf down a meal and go to bed... it's just amazing. To this day, I feel a bit of urgency when I am going home from work, even though there is no meeting to go to. And it has been around 15-20 years since I was going to meetings with any regularity. So it did leave some lasting marks on me.