Had a CI done a year ago. You need to spend time researching which one to get – there are 3 FDA approved ones. Had no issues at all with the operation – small incision behind ear, no vertigo, able to shower the next day, no hair shaving. Biggest thing with a CI is you need to do aural rehabilitation and you need to do it a lot – it makes a big difference. I think there is not enough emphasis on the fact that you are now hearing differently and your brain needs sound training. No regrets. Still use a HA on other ear.