I'd take it, it will be a strange, yet satisfying experience. But I still have some questions:
What would happen if during that week something happens to that person, just like an accident occurs? Will I "wake up"?.
Will I be able to feel the same physical sensations of that person, like pain?
What about when that person sleeps, Will I be able to see their dreams?
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A similar offer, but you won't be physically nor in his/her mind, instead, you'll be some kind of "guardian angel" and as so, you will be able to influence (to a certain degree) their thoughts. The coma also applies.
You cannot be at more of 3m from that person. (you will be dragged as that person moves).
And of course, all memories of seeing any nude person during that will be erased as soon as you stop looking. This is to avoid voyeurism.