Now, to start with, if you want a player which is multi-purpose, and can play videos and view photos - look elsewhere. This is strictly music only (with the exception of using it as a data drive). It doesn't have a screen, but for me this is perfect. I'm tired of waiting for my other player (Sony NW-HD3) to load up, then I have to troll through various menus, select the song, wait for the hard-disk to spin up before putting in my pocket, and having to take it out every time i want a song change. This for me does exactly what I need. I use it primarily in College and at the Gym. Its great because it just clips on, you turn it on and music plays literally straight away. There are no loading times, even when skipping tracks, and it is very easy to use. There's 5 buttons, all operated by the thumb, and the great thing is, if its clipped to your trousers, you just press the next track button to change songs. Theres no faffing about with menus and selecting albums.
However, it won't be perfect for everyone because of this. If you want all your music in albums, this wont work, because you can only skip through tracks, but ive made a playlist of my favorite songs of the current time, and put that on. I know whats on there too - because they are my favorite songs. iTunes is easy as you'd expect, and the sound is good too, on par with its bigger alternatives.
Now, to clear it up, there is hiss if you use in-ear headphones. I sometimes use my Sony MDR-EX71's, and there is some hiss, not particularly noticeable. But i use the headphones which came with it, which are fine, if lacking in bass response.
This thing looks and feels great, and well put together. Its tiny, smaller than the size of the 'Enter' key on your keyboard, and light too, so if it drops, it just dangles from the headphones and doesn't detach, so it wont hit the floor. Its not noticeable, unlike bigger players which you can feel in your pocket. Some people say it may get lost, but keep it attached to your headphones and there shouldn't be a problem.
Of course, with the dock, it looses portability value for data storage, but to be honest, if i wanted to transfer my data/work files, i use a USB dongle, and not a £50 music player.
Whats more, its cheaper than any previous Shuffles, and at only £55, a cheap way to get in on the iPod market, and noone will call you a cheapskate because it looks fabulous.