Interesting develoment, seems similar to what APEX (Airline Passenger Experience Association, an industry org consisting of airline companies) is establishing: http://apex.aero/2016/04/06/Official-airline-ratings-APEX-an...

Wonder who'll come out on top. From my understanding, the APEX one has an Amazon-like 'verified traveler' system where only those who traveled on those flights will get to rate them (though it might be limited to partner airlines, not sure about the specific details).

(Full disclosure: Used to worked for an agency that did work w/ APEX)