To Good To Be True

We've all heard the saying, "It sounds to good to be true." And people say if it sounds to good to be true than it is to good to be true. But is that really always the case? Really?

Look at God, He created us, He's perfect, He forgives us, He never fails us, we have new mercy every day through Him, etc. So if God created us and everything else, isn't it safe to say that not ALL things that sound to good to be true are to good to be true? 

Surely a perfect God wouldn't allow that because then we would all look at Him and think that He's to good to be true as well. If we all looked at it that way then we wouldn't serve Him. Or is the whole point that He is the only thing/person that truly sounds to good to be true, but is true. Mind puzzler, huh?