Of course the Pros >>>>>>>>>>>> Cons.
Honestly, you'll be famous - make loads afterwards and all that.
But do what I would do, think of the experience of just being in the house.
You're a massive fan like myself, surely being in the house and just living the whole Big Brother life is more important than what some chavs outside think of you?
If they think you're a dick they'll kick you out and forget about you in a few weeks, if they think you're epic then you'll go down in History as one of the favourites of the new era of Big Brother.
Just imagine sitting in The Diary Room Chair, breathing in the air of a new house, bitching about the sluts in the house, being in the garden, nominating, that feeling on Friday when 2 people you hate are up for eviction and you're not, Meeting me at all the Big Brother meet ups when I become a housemate in BB16.
It's all exciting stuff.
My cousin threw away the chance to be a BB9 Housemate when she was picked, I'm confident you'll get picked - don't be silly like my slag of a cousin was lol.