I haven't actually heard the Denon, so please take my comments with the caution they ought to be given, but unless the USB is essential to you, I'd be surprised if you wouldn't get better performance from something like a Project Essential or Genie at roughly the same cost.
My thinking on this is the automatic operation (lots of cogs/levers to add friction to the arm's movement) and the length of the arm. It looks rather short, rather like some DJ turntables. This will result in distortion at the start and end of a record, although it will probably sound ok when in the middle of each side.
I would see if you can get to a dealer to have a listen for yourself, to avoid any disappointment.