I just completed it and definitely thought it sucked compared to the rest of the game so far. Just a constant hassle, for no reason. I even beat some optional super-cieth (had about 250k HP) and all he gave me was 1,000 cp.
The area isn't so awful on subsequent visits/playthroughs, but man my first time there, I had no clue where to go and the map really isn't that helpful. I was getting so frustrating trying to find where my way around.