My library got the newest version of Overdrive today. I played with it a bit, and I found it really easy to use. It's a lot easier to differentiate between books that are checked in and out. A book that's out has a grayed out icon (either a book shape for e-book, or headphones for audio), while a book with available copies has a black icon in the upper righthand corner of a cover.
When you go to check out a book, you just click 'borrow'. That's it. To decide whether it's a 14 day or 7 day checkout is through your settings, which is one thing I don't like, since some books I'd rather have for a week, while others I want for the 2 weeks.
Overdrive Read. It's a very, very good thing. It's basically being able to read them right in your browser. Now, IE (internet explorer) isn't compatible with it. I know. Well, mostly incompatible. You can use ODR, but it's a dumbed down version without all the bells and whistles of the normal one. If you download a Firefox addon, you can use the 'regular' version of ODR, but if you don't want to download anything, you're stuck with a very plainclothes version.
Even the plain version was nice, though. The Mozilla version? Amazing. Easy to read, easy to use. Bookmarks, offline reading, it had it all.