Not OP, but for me, it's like having someone stand over my head with a pot, banging it with a spoon incessantly. It utterly destroys my ability to concentrate.

Had a chance to closely observe a session once. Looked through the code later--total garbage.

Apparently it works for some, but you couldn't pay me to do it.

(Also, seems unfair to programmers that can't hear well or need other accommodations.)