I have the Samsung Y9-T9 and it's really amazing. =]
Yes, synching is slow but I think some people say you can upload your songs using Windows Media Player or something like that? For me, the program is a bit difficult, maybe because I'm stupid or something, but for me, I have to upload it into the program then transfer it so it stays there, and then find the songs again and transfer them to the mp3 player. And sometimes I forget that I forgot to transfer it to the mp3 so yeah...but I'm probably the only person who overcomplicates this stuff :x The synching time for videos is a little slow too, esecially since it has to convert, so that's another downside...
Like what the two previous posters said above, the shuffle button is really weird. I keep hearing the same songs I played previously and it rarely plays any of my other songs. For some reason, it really loves to play all of the songs off m-flo's Cosmicolor, but it doesn't like to play my Maroon 5 album. o_O And yes, it is also a finger print magnet which is kind of annoying...but supposedly I read off a site it's supposed to be scratch proof. I don't know how true that it is
yet, but I haven't found any scratches so far. There's also no built in alarm either which stinks and the radio is sometimes bad. I have to stand in certain parts of my house to get good reception, but even if there's static, you can still hear some of the radio.
For me, the buttons took a little time getting adjusted to because the back, menu, and play/pause button are on the side. But I think once you get to know it better, it'll be a breeze and you won't have any trouble.
Even though it seems like I might be bringing the T9 down, I'm certainly not. It really has great features! The screen is nice and bright and it's pretty big for an mp3 that's so tiny. And it's light and not bulky at all which is a big plus. The videos come out amazing and the sound quality is off the hook. You can also add pictures and from your pictures, you can choose on of them to be your wallpaper when you're listening to music. You can also add text files and record stuff too. And like I mentioned before, there's an FM radio which is handy if you don't feel like listening to your songs.
I hope this review helped, and hey, if you're little iffy about buying the T9, go to a store that sells it and play around with it, it's better to actually try it out for yourself...we're just simply here to guide you. =]