I give Ethics a 5 star rating, but this Kindle edition is a shame. No active ToC, a poor translation and distracting formatting issues make this unreadable. The books and chapters are separated by [ Sidenote X: ] subheadings. Aristotle's Ethics is a nuanced and complex work, but it shouldn't be an unduly laborious read due to formatting. I am very happy that this and other classics have been published for free, but I just got done with The Republic, a book almost twice as long, and it didn't have the formatting issues this does. Kudos for the effort, but I had to get a copy from my library to read instead.
That said, if you have already read Ethics, this does make for an easily searchable reference copy.