One of the issues is that the problems are often internal and not influenced by stuff like the e-books themselves or SD cards. The storage error hit a lot of us not using SD cards, but also those who were (I only started using an SD card because of the storage error resulting in a wipe). The text cut-off wasn't consistent. Some books had it, some didn't, and nobody I saw could figure out whether there was some trigger in the book's format or content.

It would be easier to accept the various issues if it weren't for the fact that it's a single platform with a single set of hardware, often malfunctioning all by itself.

(Man, now I'm getting all negative. I would like to note that yes, I still love my Kobo, even though it doesn't remember all my reading stats anymore.)