Nobody else mentioned this, so maybe I had just bad luck, but the noise level is bad. It's OK to record an interview for later transcription, it's OK to for learning an instrument to record yourself, but for anything else, the quality is too bad (somebody mentioned collecting samples of outdoor noises -- wouldn't do, IMHO).
Too sad, because despite the flimsiness (it really is light!) it's obviously a well thought-through device, good quality for the price, simple handling, I love the old-school cheap-o 2xAAA battery box (as I have lot's of those lying around), etc.