I didn't mind it too much, I find dungeons to be ways of building suspense for the next plot point. What I didn't like was the way the story flowed. I didn't like how Fei told what was going on. Some really cool moments that should've been played out in a cutscene were mild afterwards.
However the plot itself is gold on Disk 2. After all it's where things come together. Though I really felt the lack of NPC dialogue portraying various opinions on the events of the world.