Rooting your phone will void your phone's warranty. If your phone is more than 1yr old, the warranty will have expired anyway. If your phone is less than 1yr old, then the risk is yours to take. Read the Opening Post (OP) of your customization's forum page for details, what works and what doesn't. Ask us if you have questions. However, your phone can easily be restored back to its Stock ROM in case you want to revert back to what your manufacturer originally provided you.