I felt anything but free. What could a JW concieivably be free from except independent thought?
I never had any spiritual experiences in the context of being a JW. The last thing the elders and GB want is for any JW to experience "Christ within" or "the kingdom of God" because this undermines their authority. Someone who feels that they have a personal relationship with God doesn't need a GB, pope, or priest to lead them around by the nose.
When I was being interrogated by the elders I mentioned that I sometimes felt the presence of God when I prayed and that I could not accept that a being of such pure and infinite love as I experienced God to be could possibly send plagues upon the Egyptians or order the genocide of the Cannanites. His reply is very telling of the whole JW mindset:
"Why you? Why would Jehovah choose to reveal himself to you of all people? What makes you think you are so special?"
I tried to explain to him that there was nothing special about me. That the only difference between us was that I was open to knowing God directly, while he relied upon a book and an organization. He then concluded that the only thing I was experiencing was demonic possession and the conversation ended there.
Fortunately I was already pretty well-read by then. Experiencing a warm, loving presence during prayer is a fairly common experience that cuts across denominational barriers. Madam Guyon, George Fox, and Saint Augustine all felt it even though their beliefs were very different.