"Excellent for the price, extremely versatile"4.5 starson by john_borrie
Pros: Uses cheap SD cards, quality is great
Cons: Interface is fine, but somewhat basic
Summary: For the price, the Zoom H2 is unmatched. I use if for 3 main purposes: for research interviews, for recording audio for podcasts, and for ambient recording of my rock band. It works well in all three applications. It's two AA batteries last for about 4 hours (it also comes with a mains adapter, uses SD cards up to at least 4gb and has a range of recording formats including MP3 in various qualities.
Can't fault it really. User interface is somewhat basic, but is completely functional. Slightly plasticky, but what do you expect for the price? Some say it seems to resemble a man's electric razor, but that's kind of cool too. If you're going to record large files, think about getting a high-speed card reader connected to your computer: the USB cable will transfer, but it's slow. Apparently the Zoom will also function as an audio-digital interface, but I haven't tried that yet. And, of course, it's incredibly portable.
I think this device is destined to be a long-lived classic of the ilk of the 80's-era Akai sampler. Great value for the money, and hugely empowering. Better than devices 2-3 times the price.