I'm not gonna lie. I bought this on recommendation from 4chan forever ago. Recently came into the money to get it, and did so.
First off, it's TINY. I thought it was gonna be about the length of an AA battery, but it's shorter than my thumb, and SO LIGHT. It's called a "Clip" 'cause like 80% of the thing is a massive clip. If it didn't have the clip, I think it'd weigh a negative amount, and NASA would be all: "Dude bro, you best give that to us," which means the clip is a good thing. It's nice and unobtrusive, though, and I assume, for those that enjoy such things, it'd work just fine.
The buttons are just big and distinct enough for me to press through my pocket, but not enough to be pressed accidentally, and even if they were, you can lock it all up, so that's cool.
The thing receives FM radio too! I mean, it says it does, so I guess I shouldn't be surprised, but it's FM radio, man. I didn't even know that still had stuff on it.
What else is there... Oh yeah, the screen. It's SUPER bright, and has colour. I thought it'd be a Game Boy Green-And-Darker-Green dealy, but no, apparently not. Pleasant surprises all around.
It comes with earphones, but I'm not gonna go near them. I have weird ear hygeine phobias, so I'm just using my normal headset. The Clip is a bit on the quiet side, but one of the major reasons I bought it is because you can Rockbox it, with custom firmware, and the low volume is apparently one of the things it fixes/enhances. -- Just found out the reason it's quiet is because I told it I was in Europe, where there's apparently a really stupid law that means you're not actually allowed to hear your music. When you turn this on for the first time, tell it you're in the "Rest of the world".
While I'm here, let's talk about the SDHC slot. SanDisk have been clever. Have you seen the iPod? It's like a £100 cost for another 8GiB, right? 'Cause you can't do anything about it. They have complete control over your available space, as it's completely upgradeable. That's a good thing for companies, right? They can charge buttloads of money for no real extra cost.
It isn't just Apple, either, it's every MP3 player maker dude or dudette. SanDisk are smart, though. They put a card slot on the Clip, and then they also sell the cards. They're very well-known for flash cards, so who else are you going to go to for them? They sell more products, and you, the user, can get more for your money. Everyone's happy.
In short: Buy this.