Simple as that. It's fantastic, and is the first true FC content we've seen so far. It's great.
- Variety (battle, gathering, flight, giant area, optional goals)
- Able to switch jobs in the instance
- Music is good
- Can enter and ally with non-full parties
- Not rehashed content; new monsters etc
- Good reward list
- Neat references to older FF games (Dinosaur Forest in FF6)
- A sense of mystery (we just saw Hyperelectricity Weather)
I only have two points of feedback on it: contribution rewards and alliance system.
Contribution system: The contribution system to earn a chest from a mob is changing crowd control for the worse. It encourages players to outright ignore adds and focus down the biggest target, thus generally leaving mobs unchecked and crowd control is a mess. Everyone is trying to hit the biggest target so they don't miss out on the chest drop. This aspect of game design is only going to trickle down to the playerbase with negative effects. Even if no one is pulling mobs during a NM fight, the chance of a lesser mob spawning on top of you is still common. All of this is compounded on the fact that you can gather in this area, but there is little reason to gather when combat is occurring or else you risk missing out a chest via contribution.
Alliance system: It's downright unacceptable. It's not even an alliance system; it's a pseudo menu in the workshop and nothing else. You have no link to your other parties in Diadem; no way to natively chat with them, no way to watch for them on the map, no indicators above their characters that they're with you, no way to see their status or HP. What's the point of having an alliance channel if it's not even used here? We need a real alliance system, period. And not the one that the open-world uses, because it enforces full parties.
Finally, we lose our friend list when we enter. I have all names off for non-friends, and suddenly in Diadem no player names show up unless I force that setting back on for all players. We also lose our FC crests. What's the point? This is huge FC content and it wipes out our FC crests on gear.
[EDIT] Expand this content in future patches with new areas, new music, new rewards; and I'll be a happy player.