But frankly, when you think about it, the only amazing thing about FB is how it got popular, that's all. As for the user experience it's very far from amazing, in spite of all the tech used. It's slow, and on mobile not only slow but also resource hungry, it has several glitches, plus there is a ton of things that annoy users.

Now, I can understands that someone working for SpaceX can think they're all amazing, but if you work for FB? It's like working for MS in late 90s - maybe good for you cash-wise, and that's pretty much it.