This piano is unique because it is a professional model C3 6'1" piano and is a studio/performance level piano. Most player grands are based on the cheaper models to keep costs down. Most larger models such as this are polished Ebony or Satin Ebony. The Polished mahogany finish required up to 6 months wait as a special order. I've been in the business for 30 years and I've only seen 2 others, and they were special ordered new at the time! 
All technology works correctly, it is upgradeable to the new DKC-850 which adds many features including Disklavier Radio . Very difficult to tell from new cosmetically or musically. Currently owned by Yamaha factory trained tuner/technician, with Disklavier training as well. 
Price includes matching factory bench, owners manuals, software, and remote control.  Any/all questions will be answered, 3rd party inspections welcome and encouraged. more pics and video available.