Good luck with your CI evaluation Adela. A key word in this is 'evaluation'. CI candidacy is determined by evaluating many things about your hearing loss, the structure of your inner ear, your ability and willingness to do the necessary rehabilitation following the CI surgery, etc. I am not a hearing healthcare professional, but through my involvement in HLAA since 1983, I've watched the evolution of CI success. I knew people who were among the first to receive them when they were experimental and single channeled. I've seen the remarkable advances in technology, and watched the remarkable positive changes in the people who received CIs. Yes, I'm aware of a few failures. Failure happens with just about anything, but it's unusual. I watched and waited until 2005 before I had CI surgery. It changed my life for the better. My only regret is that I didn't do it sooner. Like you, I was afraid it wouldn't work; although I knew it worked for most people who had the surgery. But, my hearing had reached the point where hearing aids were helping very little. If you are there, what do you have to loose? My CI was done on the side where I had the poorest hearing, which wasn't very different from the other side, but I could identify specific sounds better on the 'good' side. While I don't know the statistics for success/failure with CIs, I believe the odds are with you to have a substantial improvement in hearing if you have the surgery done. I also encourage you, and others who have CIs to use the accessories that make it possible to do even better. I absolutely LOVE the Mini Mic device that works with my CI & HA. The CI telecoil works well with my iPhone, so I don't need the Phone Clip. That Mini MIc makes it possible for me to do better than I ever dreamed of doing in noisy social settings. Do I hear everything with it? No, but it sure helps. I hope things go well with your evaluation. Good Luck!