The basic rule of thumb for Rooting is:
If you DON'T know what or why you are doing it, DON'T.
Why? Because you can render your phone into a "brick", that cannot be restored. (Not REAL likely with this series of phones, but IS possible)
Before you try to root the phone, ask yourself: "Do I want to buy another?", because odds are, you WILL violate the warranty. If you "brick" it, you are on your own...