Clearing Casino Bonuses

[usi34]

I've been bonus-whoring a little bit lately but only at Poker. I just finished clearing my littlewoods account and noticed that my withdrawal limit was still higher than my balance. I contacted Littlewoods and they told me i still have a casino bonus i can clear. Here's my question.

Is it worth it to attempt and clear this bonus, even if i have no experience on any casino games.

If it is worth it what is the best method, or best game, to play and could i get a quick tutorial on w/e the game is.

Thanks a lot