it's like asking whether a horse is good. yes if you're galloping across a beach, no if its stamping on your head
its whatever you make of it.
i have proper friends all over the world who I have met and know personally and its a handy way of staying in touch.
i use it a lot for business also. most of the applications are in my view utter shite, but if someone wants to know what kind of alien they are, let them do it.
sad socially inept tossers will be sad socially inept tossers whether they're in the pub or online.
I had a cull of friends recently, getting rid of anyone I didn't like or didn't know and there were only 5 i killed.