Everything is in like new condition from an aesthetics perspective. No cracks, discolorations or scratches.
The dock has a radio, CD player and the dock for the iPhone. If you have an iPod, that will dock as well (see below for compatibility options. The CD player is hidden behind the main panel. The eject button on the remote or on the dock itself makes it slide upward (see pic).
I used iTunes on a PC to transfer music from iTunes to the iPhone and then played it through the dock. Here are the different playback options.
Playback Options:
CD
CD-R
CD-RW
MP3-CD
WMA-CD
USB flash