What are your first impressions of Lady Macbeth in this scene?

Lady Macbeth

1) What are your first impressions of Lady Macbeth in this scene?
2)
What is the tone of this piece? If you were the director, how would you instruct Lady Macbeth to verbally recite these lines? Would there be a change at any point? If so, where and what would it be?
3)
Are you surprised by Lady Macbeth’s reaction to Macbeth’s letter? Explain why or why not.
4)
When Lady Macbeth calls on the spirits to “unsex” her, she wants them to take away her femininity:why?