I am 17 months post treatment.
Before treatment I had the fullness in the ear, I could hear soft sounds OK but loud sounds were the same volume, which was damn quiet.
My hearing was -30db and is now back to -20db. Thats within normal range
The numbers really dont measure the amount of hearing improvement.
The ability to hear louder noise sound is where my big gain has been.
To explain this. Imagine your friend is at a rock concert and he is giving you a call on the phone.
The band is about to start but all is pretty quiet, you can hear them clearly on the phone. The rock concert starts, its loud!. But no matter how loud it is where your friend is, the volume coming through the phone is roughly the same. This is what it was like with my bad ear.
I could hear quiet sounds quite well, but when the rock band started there was no real volume change.. Just a sensation of pain on the eardrum.
In anything but quiet environments my hearing was pretty much rendered useless in one ear, as there was very little volume coming through one ear. But in very quiet environments it was OK
The fullness is gone, my hearing remains normal, the sensation of volume is also back.
I hope it stays this way, and that I can be writing something similar in 5 years from now