Pros: Incredible picture quality for Blu Ray, reference quality for all sound formats.
Cons: Somewhat slow booting up. Takes some time to learn the menu system.
3 years later I have never regretted the decision to go wit the Marantz. In my media room I have it hooked up to a Bryston SP3 pre/pro. I have hooked up one HDMI output to the SP3 for when I watch movies. I also have the 7.1 channel analogue hooked up to the SP3 for SACD multi channel. And last but not least I have the balanced output hooked up to the balanced input on the SP3 for listening to CD's.
For me 3D is not important and the primary decision was based on the sound of the Marantz USING THE ANALOGUE OUTPUT. The slow boot up time has never been an issue because if I sit down to watch a movie I don't care if it takes a minute to boot up and load or 10 seconds. It has never bothered me.
My projector os a JVC DLA RS25 which is not 3D and I have no intention of going 3D in the near future. My next projector will be a 4K projector with LED when their is 4K content readily available. Until then I love my projector.
For me the Marantz represents the best SACD, DVD Audio, CD and Bluy Ray I have ever experienced in my room. SACD with the right recording approaches what I get from my analogue front end.
One of the negatives I have read about the 9004 is that it does not have any digital inputs that could leverage its incredible DAC. That was a consideration but when I heard the DAC in my Brsyton SP3 it was no longer an issue. I did not need to access the DAC in the 9004 because the DAC in the SP3 would be my converter for any digital to analogue conversion I would need.
One of the areas I explored when I did my review of the SP3 in this Forum was to compare the DAC in the 9004 and the SP3. In my listening I could not hear a difference which says a lot about the Marantz audio quality.
When I look back at the fact that I almost dropped more money on an audio only player 3 years ago I am very thankful that the 9004 was released at roughly the same time.