Just about the best workplace I can imagine
Pros
Facebook as a company takes care of their employees. The benefits are outstanding, featuring all the health related perks you can imagine (free, healthy food, gyms and other physical activities, a wellness center complete with doctors of all kinds). And the work itself is generally very good, with teams that empower their employees to come up with their own roadmaps every quarter, allowing for lots of creativity and innovation.
Cons
Like most tech companies, there is an element of top-down decision making which can make employees feel like they're not always working on what they want to work on. And while I believe Facebook can be a force for good, they are also occasionally a force for bad things in the world, and I don't want my legacy to be that I worked here forever. Luckily, with how great things are around here, it'll take a truly amazing opportunity to get me to leave.