I’ve never used it, simply because I hate autocomplete in emails.

Gmail autocomplete saves me maybe 2-5s per email: the recipients name, a comma, and a sign off. Maybe a quarter or half sentence here or there, but never exactly what I would’ve typed.

In code bases, I’ve never seen the appeal. It’s only reliably good at stuff that I can easily find on Google. The savings are inconsequential at best, and negative at worst when it introduces hard-to-pinpoint bugs.

LLMS are incredible technology, but when applied to code, they act more like non-deterministic macros.