I struggled for three years with Costco hearing aids. My wife urged me to see an ENT. I went to Dr Hyde and Dr. Whittey at Alpine ENT. I was diagnosed with nerve loss in the left ear, with severe hearing loss. My right ear had minimal hearing loss. Dr. Hyde ruled out any medical cause and prescribed Bi-Cross hearing aids. Dr. Whittey fitted the new hearing aids. As a result my life is wonderfully changed. I have surround sound. My problems with balance went away. I do not become tired in the late afternoon because of compensating for the hearing loss. All in all, my life is changed for the much better. Thank you.