Ah yeah, I had this done two weeks ago. I was pretty much functionally deaf from wax. The nurse said she couldn't even see my eardrum through it. It was so thick and dry, though, that on most appointments it was deemed too hard to remove.
I was having to pull my ears open with my little finger to make a space in the wax so I could hear anything at all.
I had to use olive oil three times a day for another 10 days before it had softened to the point it could be removed.
And I was stunned by the difference. It felt a little uncomfortable until the wax blobs worked free, then it was quite nice. I remember hearing the rustling of the paper I was holding under my ear. First time I'd heard such a quiet sound for so long, and it sounded so damned loud.
The high street on the walk home was almost unbearable. I had to fight the urge to cover my ears. And for the next two or three days, everything was really uncomfortably loud. Water running from the tap, my footsteps on floor tiles, urine hitting the toilet, noises from the street, my wife typing on her laptop behind my chair. All were unpleasant, overwhelming, and slightly disorienting. And my two kids (4 and 2)... words couldn't describe!
Thankfully everything has settled down to being clear but tolerable again now.