the implants do work, but they are not plug and play. expect a 6 to 12 month rehab period with a speech therapist and an implant specialist (like an audiologist). the second one will adjust your hearing frequencies to improve the sound. the first will test you and evaluate your progress giving you homework. you are learning to hear again. at first, all i heard were chipmunks or static filled sound. still struggle with high freq sound, but my spouse worked with me (she read, i repeated). good luck with this and keep at it. its worth the work.