My brother in law is a pretty good LDS kid. He says that Porter Gustin is loved by everyone not just because he is a sports hero, but because he is a genuinely nice person to everyone. Said he is a good LDS guy too. I live all the way in Florida so I don't know anything about him from local media other than what I read here on Cougarboard and my BIL.
This is the one and only time I have source close to anything and my source says Gustin is legit....no shadiness.