I have 3G - at first, I suffered greatly from migraines and ringing but two years later, I can actually understand conversations without any visual cues. It has helped me tremendously with my confidence with hearing people.I have no regrets.
My best friend who is a principal of a state school for the deaf was upset with me at first but now she is considering getting CIs for herself because she is a mother of 2 very small hearing children. She realizes that she needs all help she can get in order to communicate with her hearing kids. It has helped me undrestand my daughters even more.
I went to see a movie with my kids last Friday night - I was able to understand the entire movie. I thought I was going to fall asleep after 20 minutes into the movie as I did in the past if it had no open captions but during this movie, I actually understood and enjoyed it for first time.