having had the chance play and run the mongoose version of Traveller I will share my thoughts
as an old school gamer most " new versions " tend to not impress me this game is the exception !
let's start with the character generation that is similar to classic Traveller characteristics are generated with 2d6 and modified in the generation process you still have to roll to qualify for a career skill experience is still rated by numbers e.g rifle 1 engineering 3 so on .
Actions are covered by a skill check system of 8+ on 2d6 with modifiers of plus or minus depending on the situation . my favorite part is like classic Traveller all you need to play is the core rule book .