David Dickinson does an excellent job of explaining the so-called super moon along with a nice bit of lunar orbital mechanics and effects.
The bottom line is that it’s not that big a deal. You probably can’t tell the difference by looking at the moon. The weather and other local conditions, along with whether the moon is rising or high in the sky, have a much greater effect on what you see.
The news buzz of the “super moon” also causes more people to stop and take a moment to look at the moon. Then they notice, “Wow! That thing really is big and bright in the sky!” That’s a nice thing that astronomers generally just to more often anyway.