Overall one of the best readers currently available, certainly far more suitable for my purposes than the Kindle or the Nook. I use it to read non-drmed books and files, (mostly epubs but a few pdfs). Some thoughts:The pdf reading experience isn't great, but no worse than the Hanlin and Sony readers I've had in the past. Adding Chinese/Japanese or other special character support is very easy- just download the fonts, then select your special font. I had much more trouble trying to get this to work on Sony's readers.In book mode, you can sort books by title, author, or recently read, but not by "recently added to the device", which seems a major oversight and was quite frustrating for me. The Kobo doesn't seem to recognize tags at all, and you can't sort books by tag. Again, a pretty major disappointment for me.You can use the search function display all books by a certain author or all those with a particular word in the title. This feature was well-implemented.It includes Sudoku and a basic web browser, both of which are very nice.Warning- it "phones home" to Google analytics (and I think Kobo's sites?) without asking permission and without notification. This can be disabled fairly easily.In the same vein, I was unimpressed that it tried to have me register for an account before enabling wireless access.