I got given one of these (the blue 2Gb one to be precise) completely out of the blue. I didn't ask for one and would not have planned to buy one out of choice, but I thought i's give it a spin, how fun it is!
I've got over 37Gb of music on iTunes, and currently have a 1st gen Ipod touch, but seeing as it was free, it'd be a nice addition to the collection. Plugged it in, set it up, hit autofill, done!
Its that easy, as I like all typs of music, I don't mind what's being thrown on, and its so so tiny! Its ideal for me to walk to lectures with as its only about 15mins, and its small enough to easily fit in my pocket.
Soundwise I can't see much of a difference to my iPod touch, only thing is it doesn't deliver as much bass, apart from that I find it fine.
Ok, it doesn't have a screen, but its purely for music, and if you like listening to particular songs or albums, this might not be for you (however, I just put the songs I really like at the top of the playlist, flick it to un-shuffle and hit play 3 times, sorted!)
Now i'm just finding how creative I can get at clipping it on me!