Franz,
Like your otologist, my audiologist told me the same thing about F120. She also told me that F120 does *not* consist of 120
channels. Instead, it consists of 120
spectral bands. It appears that AB has stopped advertising F120 as being 120 channels. My audi also explained that no more than 12 channels are necessary for a person to be able to understand speech with a CI.
As for what others have experienced with F120, all of them say it's a HUGE improvement over HiResolution. One person reported that they are able to understand music lyrics better now than they could with HiRes. Another person said the sound of F120 is similar to CD quality as opposed to FM sound used by Med-El and Cochlear.
With F120, researchers at AB say that this new programming software allows CI users to hear more frequencies with greater clarity than they can with HiRes and other older strategies.
On the flip side, I've also heard that F120 does not necessarily improve speech discrimination in noise like AB's advertisements claim. Two people I know who participated in the F120 trials told me they didn't notice a significant improvement in their ability to hear in noisy environments. Much of the improvement they noticed was limited to music.
If music is important to you, F120 (and the new Harmony) is something you might want to consider!
If you have any other questions about F120, let me know.