Olive 3HD or Marantz 6004

I've been looking into possibly getting a music server recently. But I saw the Marantz CD with the USB port and am now considering this. I know the differences as far as features of the two, but does anyone have an opinion on sound as far as cd playback goes?
Just bought a MusicVault Diamond server - might be selling a 6 month old Olive 3HD with the 2tb upgrade. If you have any interest get back to me. Stevenfrye at Yahoo or through the mssg system here.

Careful with the Marantz. AFAIK, it does not do "gapless" playback. That's a deal breaker for me. I have a Vortexbox Appliance, and love it, along with a Squeezebox Touch. Simple, cheap, and great sound.