Citadel is decent, with some challenging spawns if you solo (I hate you so much, buffed Vanda Orga). The area looks pretty cool, and the Damfoie traps never cease to amuse me (They have faces
). However, there isn't much variety (almost the entire mission was Nava Luddas and Vandas), and the last block was pathetically easy. Overall, it's slightly better than I thought it would be, but it won't stay popular for long.
I haven't ran Security Breach yet, so I'll edit this later when I have.
@Ryna: Insta-kill traps?