ok everyone is getting VERY excite about this
firstly the cost will be EACH not for two (nothing is ever that cheap in ibiza)
depends on wot you eat and how much you drink (i'm veggie so cheap meal for me, but i drink LOTS!!!)
so i'd say it is worth it as it gets you in the club, but as rob said you are paying for the meal! its a 5* restaurant!
i'd still def give it a go, as its a wicked evening all in all