I'm reading it right now, it is so great -- the layered stories, the SW6 batch, the SUBs.
I will say I think they did let some plotlines get lost in the shuffle. Like, Celeste Rockfish and the green energy, Kent Shakespeare just showed up without much background ever given, or Bounty / Dawnstar (I guess I'm dense, but I didn't realize it was Dawnstar until it was revealed, though the clues were all there). It was also an interesting choice to have the main Legion become like supporting characters in this long arc, they didn't have much to do with this big story of liberating Earthgov. But this is nitpicking perhaps.