There's no discussion on this, thought I'd make one. Has anyone pushed very far into these yet? I've run ~10 and highest I've done is tier 3.
Pros:
Theoretically endless high level area to grind (136 max?)
New bosses with unique challenges.
New cube items
Cons:
Same enemies in every map? This was surprising
Limited potions. I started filling up my inventory with potions before entering.
Bosses have tons of life.
Quick lockout
Am I missing something about progression? You clear the instance and hope to get a drop of a higher tier stone?
What do the bosses drop? I only attempted to kill one and inevitably ran out of potions.