I'd been wanting a digital voice recorder to record my lectures, but my options were somewhat limited due to the fact that I use a Mac, and this one was unanimously recommended to me. It hasn't disappointed- the sound quality is generally very good (although the mic is ridiculously sensitive- it's much more effective on lo than hi), I love the fact that the USB plugs directly into the computer (no fiddling around with cords) and battery life seems fairly reasonable.
The only thing that's slightly annoying is the way that third party software is needed to convert the WMA files into MP3s to be played in iTunes, but such programs are easy and inexpensive to purchase, so it isn't a huge issue. A very effective, easy to use product- I'd highly recommend it.