I'm not on Facebook or Twitter because none of my friends are so I don't really care about social. I mainly just care about performance and security, with special emphasis on security.
Then again, it's a browser that looks just almost like Google Chrome... but unlike chrome, it's a browser that has a 20% faster online performance (you'll see what I mean if you want to use it), and I haven't had problems with it during the last 2 years. Yeah, it's secure, so don't worry.