For me personally, it's almost impossible to deal with. Way too many political posts from my friends and family.
It's probably best use for me is local events and an occasional major event from a friend/family member.
Still, I find myself going there less and less.
From a small business standpoint, it's just not worth the time, effort and money to advertise there. It's much more effective to focus on getting referrals with my current clients.
I really wish there was a paid social media service that everyone used. I would gladly pay $5-$10 a month for something that didn't sell my data.