Gradefixer's service is excellent, and I would use it again if I ever needed to get help on an assignment. A friend recommended Gradefixer to me as she used them last year and had nothing but praise for their services. They understood the format requirements and finished quickly without any revision requests. The payment method is also convenient as you can pay by credit card and PayPal, so there are no hidden charges. Customer service is always available 24/7; you can even chat with them online should you need any clarification on your paper before submitting it.