Well I dont think it requires any explanation. Every one know about Apple iPod. I guess this the ultimate pocket digital music player at this range.
It gives tremendous detailing of the sound, one can hear all the noise from the instruments used in a song. Its really amazing to listen a song in iPod. After listening a song on this device, one can easily differentiate the extreme level of quality.
Some of the great features are:
i) Voice Over Button made it possible to make and use playlists, battery and artist name, song name etc.
ii)(Someone may think that finding a song in a long queue is bit hard, but when the playback is paused, it speaks the song name on its own(when next or previous button is pressed) so, like you see and change, the difference is you hear it and change.
iii) Battery backup is really good. I charged it full and used for 2days(5 hours a day) and still it says 50% charge left.
iv) Also a 3.5mm jack is used to charge the device, sync songs and connecting headphone(only possible in apple) so it only has one jack, no different jack ports, which makes it look even better.
So I would say, go for this product. Youll love its built quality, sound quality.