Playing through the Legion of Almire was fun and challenging. I loved how new enemies were made for it, instead of just the same old ones by themselves. /Most/ of the mission seemed just the right difficulty to me.
I like how the mission is so tuned to shadow damage. Others in my party were expecting something more along the lines of FSC, wearing combo shadow-elemental or full Vog Cub gear, while I gunned in full Deadshot gear. With my shadow resistance, they died much more than me (especially on the first level.) It's nice having a thing this hard that almost REQUIRES Shadow defense whereas in FSC you can usually get by without.
The hardest part of the whole mission for my party was the left party button in the second level. At first I thought it was completely overkill, but then we went through the rest of the level and it was easier. Even the button before the codex and elevator. I'm not complaining that the left button is too hard, but that it's harder than the last battle. The last battle was so much easier that I found myself thinking "That's it?" when it was over. I really expected either a boss or, based on what I had seen previously in the level, a really, really hard battle. So my suggestion here is to nerf the left button the slightest bit (I would think of removing one of the middle waves) and buff the button battle before the codex.
That's all I have to say for now, and I look forward to playing on the normal server!