PaperTrue has been really helpful. When I had problems regarding the 5% student discount on my first editing, they went out of the way to help me. I also appreciate the free sample editing, they were really prompt to return me the editing within a day. From the sample editing, I was able to understand what were the potential problems the editors may have with my PhD thesis, so I could list them out for the editors to take note of when they edit my chapters of thesis. The editors were also prompt to return my PhD thesis a few hours before the deadline. They improved the styling and phrasing of my PhD thesis, and also gave helpful comments. However, they should improve on their accuracy.