Meta

Good benefits.

Work culture is good in most aspects.

Free food.

Travel to different Facebook offices.

Talented and ambitious peers push you to grow.

While the overall experience at Facebooks is reasonably good, depending on the team, quality of projects/work may vary from excellent to pathetic.

Need to bargain hard on your CTC while joining the company to safeguard your interests. Managers have absolutely NO say in your compensation and won't be able to help you even if you perform well.

One should always interview for the Software Engineer position, which has slightly better pay, more opportunities to move around, and different (better?) evaluation standards.

If you end up in a team which has no clear charter, you are expected to find your own work while the managers would not support you with this.

Work-life balance is average at best. You are expected to work a lot, and it is more so if you want to grow to higher levels. In my opinion, people who have strong career growth don't have much time left and burn out often.