I deactivated my Facebook account several months ago, and it's been about 90% great, 10% frustrating. It's great for all the obvious reasons (less timesuck, less compulsion to endlessly scroll your life away, no notification interruptions). The frustrations are real, though. Primarily it's around events and photos. There are some communities I participate in that regularly organize events through Facebook, and now I…
I have to say though, FB tries really hard to reactivate your notifications. It's especially annoying when it hooks into your mobile Chrome browser notifications (took me a while to figure that out!). And the fact it can't be uninstalled on Samsung devices - at least you don't have to login.