I would like:
1. A way to tell -- directly -- from the book page description if a coupon is allowed on that book. I shouldn't have to add it to my cart first.
2. A way to organize my library. At the VERY least an "archive" system like B&N has, but I would prefer user-defined shelves.
3. I dislike how often the Kobo site logs me out. I've got "remember me" ticked but EVERY time I go to the site, I have to re-login.
4. I LOVE the Amazon "poke the publisher" option. B&N recently removed it from their website, boo. Kobo should add it -- AND the automatic "add me to a mailing list and notify me when it comes available" option. Why Amazon doesn't do this, I'll never know.