Can you please list the most common benefits to having a cochlear implant?

Several: Implants improve awareness of environmental sound localization, understanding closed word sets, and improve understanding when combined when lip reading and other facial cues.

CI not for everyone: To get a cochlear implant (ci) in the us, in general you have to have nerve deafness of a high enough severity that a hearing aid isn't enough to let you hear. At this point, it is typically performed for bilateral (both ears) having this severe hearing loss. Research is being done on ci with lesser hearing loss or in cases of single sided deafness, but most insurances wouldn't pay for it.