I liken it to one of the images of Greek Hades, where you're doomed to fill an urn with water using another urn that has a hole in the bottom... you keep working and working and nothing ever feels accomplished.
Religions based on works are the most futile thing I can imagine spiritually speaking.
It's also constant fear and guilt, at least it was for me. Fear that I was going to die unloved by God, because I could never do enough, and guilt that I was also not "saving" other people by preaching to them. I never made a Witness out of anyone. I'm quite glad of that now, but I used to feel so guilty about that!
I always thought God was punishing me because we always have had problems, the kind a lot of people have. I thought that was evidence that God hated me. I've had ungoing health problems, so do my kids and my husband found out he was a type II diabetic 3 years ago. I thought that was evidence that God hated us for not doing enough.
The WTS god is all about hate and fear and guilt. Mind control and coercement is the only way you'd serve that God...no one would do it willingly. If I still thought that was what God was about, I'd be an atheist, and then I'd probably kill myself in despair. Their version of God running the universe like they run the WTS is inconceivably horrible.