Alongside the French Arm Adventures and the Ships of the French Arm (plus the core rules), this presents enough material for running a successful 2300AD campaign for years. Of the three, this is probably the best place to start as the overview gives a good thematic grounding.
The presentation of the line continues to improve - with colour added to some illustrations and maps for the first time and the quality of the writing is good. It's an exotic setting, but well grounded in genuine hard science ideas - and this is good inspiration for those that may be jaded by the looser, more space opera elements of the default Third Imperium Traveller game. On the other hand, if you're not a hard science fan then the opposite may be more apposite - it's kinda like an 'Advanced' Traveller setting in this respect.
In all, though, this setting is really taking shape well now. Recommended.
[4 of 5 Stars!]