I think I've gotten everything there is to get from my faction: six emblems, four shaders and three ships. It took me until level 47 to get them all.
I'm just wondering if there is any reason to stick with them -- like if there are any additional rewards I'm missing, quests that require their allegiance, or any special perks for reaching 50 and above. If not, I'd like to try working on another faction.
If anybody has some experience with this, I'd love to know. Thanks in advance!
EDIT: Almost forgot, I got an Exotic class armor from them too through a quest.
EDIT 2: Does each faction also have a Legendary Ghost shell?