First I tried the newer Squeezebox Duet which has a display on the remote control but I prefer the Classic because the display is much bigger then the display of the newer remote control.
I have never enjoyed music so much with this device, just scan your music and it imports all your iTunes playlists or your music folders if you don't use iTunes (in my case I don't) and use the handy remote control to listen to it (random lists are also possible).
And there is another advantage as well. Sound on a pc can sometimes sound a bit bad because of the electricity (I read this and heard it).
With a music server device, the music is sent from your hard drive to the Squeezebox via IP packets (network packets) and in my case it is then sent to the Dac via coaxial cable.