I have a friend with a little guy who's had them a month now and he's only 4 months old.It is just what you describe.
It doesn't seem to bother him, and my friend said the difference it made when they turned it on, made everything else seem unimportant.
Good luck mate. I used to work with one of the professors from Hearing Australia at the kids hospital where we did cochlear implants and they were always fantastic. They have a great support network for you to utilise too.