Yes. I got an A in my class. Without this paper I would have gotten a B.
As far as my work is concerned it was delivered to me within my given deadline. Apart from changing font style of my document there was no other major change required.
No, in my very limited experience, these folks provide very poor work and poor service. Read through the negative reviews and I urge you to steer far from the positive ones as it seems like they are posting reviews for themselves.
No, I wrote a whole review about them on site jabber check out the reviews