The Good: 
IMO, the tail-rotor has been the greatest obstacle to the successful utilization and propagation of rotorcraft. The V-22 tiltrotor and now the X2 coaxial should help relegate the tail rotor to its rightful place alongside the gyrocopter.
The Bad: 
Lateral symmetry is the predominant characteristic of all living creatures and man-made vehicles, for obvious Darwinian reasons. The coaxial X2 is a significant move toward lateral symmetry. However, if fails to utilize the additional advantages that will be derived from laterally disposed main-rotors.
The Ugly: 
If sixty years ago the German helicopter configurations had prevailed, or if thirty years ago Sikorsky had incorporated the recommended improvements to the
XH-59A ABC I strongly believe that today there would be far, far more than one civilian helicopter for every half million people.
Edited to remove offensive smilies. Offensive language will stay.