Very good battery life.

Look:
I got the red one and I like it so far. The color is nice, but I saw the black one on Internet and it looks better.

Interface:
As for the interface, it is easy to learn. It is like a hierarchical tree. At the root level, there is “Music”, “FM Radio”, “Photo” and “Settings”. There is a nice dotted image for each section and when you move left or right to next section, dots are taking shape of the other section’s image. Use the arrow key to move through lists. Use the center button to select your choice or enter a section. Use the back arrow to cancel an operation or move up one node in the hierarchy.

It would be nice if it had a shortcut button to bring the screen of the song actually playing. Actually, there is a NOW PLAYING shortcut, but it is in located in the hierarchical menu, so you have to browse to get it. It cannot be called a shortcut !

Touch buttons are somewhat sensitive and you can press some by mistake. So it is not good for handling the player because you always have to be careful not touching the buttons if the player is not locked.

Battery Life:
I've calculated 21 hours of continuous play (I use it at work). For this, I've set screen display to minimum and I did not use the screen much, only to switch albums.
I do not know if it is only me, but I cannot play music while charging the player with the USB cable plugged in the PC. But I can listen to musics if I charges the player with the USB cable plugged in the AC Power Supply (that is not included in the package).

Strange feature :
If you remove the headphone when it plays, it pauses the song. That is nice if you did not lock the player. But if it is locked, you need to unlock it to make it play and lock it again.

Headphone:
The headphone are not bad, but they do not get far in the ears, so it does not cover completely the surrounding noises and the only solution is to raise the volume.

Radio:
Radio is working well, but you cannot record what is playing and setting the presets can be annoying.
There is two radio mode:
- Manual mode where you can precisely choose any channel.
- Preset mode where you can select only preset channel.
If you want to add a preset when you are in preset mode, you need to go back in Manual Mode, select your new channel and in the menu, choose Add Preset, then come back to Preset mode. It is a lot of step to do a simple thing.

Support:
I've written to Samsung to clarify some questions and they answered in two days with a personalized message covering each point. They offers a very good support.

Extra:
There is no case that comes in the bundle and the seller could not find me one that could fit.

Overall, I like it pretty much, mainly for the battery life.