Great to score deals or remember that name of the restaurant you went to. However it can be dangerous if its linked to your twitter and people normally don't have privacy settings on their twitters- which means EVERYONE can see where you/or your child is at. Benefits of this social network is most teens care less about how many friends they have on here and its more of a Journalistic approach. However, like with most apps there are risks.
Well; this app does have it's risks for kids but there is a way to turn on privacy settings although a kid could turn them off so have a chat with them about that.
OK for kids 16+
Iffy for kids 9-15
Not for kids 8-