I think 3000 xp for three talents, two free pieces of war gear, a bonus cohesion point, access to a good, flexible talent, and a solid list of skills and talents is not bad by any means.
Icon of Duty is a really neat talent. The fact you have to spend a fate point to use it is nothing for that kind of flexibility. A choice of +10 to ALL Wp test(Libby's new best friend), Fear for the squad, or a WS re-roll for everyone in support range who charges for the whole encounter. That is dripping with awesome sauce.
The class is great, but it will require a lot of work from the player and a campaign that will not require interacting with the enemies of mankind.