I'm a graduate student at Harvard University and I work at MIT's office of admissions. On the side, I offer writing and editing services. My customers have received offers from the top 10 business schools and this year, some have already received interview invitations. I can confidently say that my services are of high quality and very competitively priced. You can email me at tinaxue@mit.edu or tinaxue@fas.harvard.edu. If you want, you can send me your essay or PS and I can give you some immediate feedback for free.