Absolutely you should, mate. I joined and I do not regret my desicion at all. Me and SuperCrazy are the tag team champions.
You have to do one RP (promo) a week, I believe, but it's really not that hard, and it's fun to think of ideas! If you have a character you really dig and can get into playing, it becomes much more fun than work.
For example, my character, Max Karzai, is sort of based on a combination of Alice Cooper and who I would like to be. I love getting into his head and thinking of all the crazy shock rock stunts he could do.
I usually get my RPs done either during the week or on Friday+Saturday.
It's a great place to interact with people you may not normally interact with, and everyone there is really cool.