Recently Purchased. Already fallen at least 30 times and tested under heavy rain (as hiking) never had anything (mp3 extinguished just in case of violent shocks without impact) which allows me to say that it is solid. 4GB large enough for my case to be stored my music, no problems recognitions of my mp3 minimalist option (configuration lighting / contrast / repeat / equalizer) basis. According to the doc, the firmware is upgradable (very useful options but still not found a new firmware on their site).
Finally the sound is good (I do not know myself but music for me is good enough with the original headphones).
A very good MP3 player MP3 player that just attractive for its simplicity, robustness and therefore a minimalist price.