After many years at Facebook I’ve recently switched jobs and have to use GitHub now for work. Compared to Phabricator (FB’s code review tool), the GitHub code review (and code merge) processes seems extremely basic and clunky.
Side-note: I took a look at the ‘About’ page thinking ‘Hey, they said ex-FB, extremely unlikely but maybe i know someone’. Looking at your username I’m guessing you’re jacob gold and worked on messaging infra in NY. I used to work on Iris! Small world.
Feel free to shoot me an email if you don't want to wait, although the list moves fairly quickly these days.