To Root or Not to Root

I apologize if this has been poster and answered somewhere already. I've been searching for forums related to the S5 active and haven't had much luck.

I have rooted phones and tablets before, must recently my Tab S, so I'm not new to the root process.

I guess my first question is, would you recommend rooting this phone? And if so, what method would you suggest?

My next question is, what if any good custom roms are out there for this phone?

Thanks