Just purchased this for my new Kobo Glo. So far I haven't spotted any definite errors, although there are a couple of things that I need to check out against my paper copies. The formatting could do with tweaking though, as there are a couple of occasions (so far - at chapter 3) where a paragraph might be in a smaller font size than the rest of the text; something that I may, or may not, correct myself at a future date. Overall, pleased so far.
I haven't read The Hobbit in many years, so it's very enjoyable to visit it again; brings back lots of warm feelings.