I dunno....
It asks for access to your contacts, phone identity, etc, all of which it does need. But it also asks for full internet access, which it doesn't need. Which, if the app developer ever wanted to be sneaky, could simply upload all your personal data to a server and then he can sell it to marketers advetizers or, worse, identity thieves.
I'm not saying he'd do that but it's always something to consider when you're giving an app access to a LOT of private information.