DISCLAIMER: To my knowledge this product hasn't been physically published yet. My review is based solely on my PDF copy. Anything in my review may be subject to change based on changed by the publisher.
I purchased the PDF but have found myself very unhappy with the quality of the product and the editing. None of the bookmarks in the file work. There are multiple typos and errors, for example math that doesn't add up or mismatching the TN with the wrong difficulty labels in explanations. In addition, I have found at least one instance where the rulebook says "You only only do [X] under these conditions," but then a page or two later states "You can never do [X]." This has made understanding the rules a very confusing process.
On the positive side, the setting and background info seems to be really good. My group was initially interested in giving this system of try because we were captivated by the idea of the setting from the description. However, we have found the sloppy editing to be a large barrier to understanding and enjoying this system.
I hope changes are made to the PDF file and the final product. I want to give the product the benefit of the doubt since it was only added a few days ago and could easily be updated in the near future. But until then I think a rating of 3 stars is fair if not generous.