You have to come and see the place and make a decision on the numbers they give you, it's not everyone's cup of tea but it's certainly not as bleak as some of the Masters of doom would have you believe!
Commuting with any of the companies will be tough if not impossible, if that's your plan forget it. It is expensive to live here but you can choose to live like a hermit and save if you wish. I would say if you choose the latter option your stay will be short!
Youre not going to make your fortune here so if that's the ultimate aim I would say stay where you are, You are the only one who knows if it's right for you so come and look and then decide, it will be an expensive mistake if you come and hate it!
Good luck