So let me get this straight...

Say CT comes with 5 floors like the 5 turns in Coil, does that mean you'll only get loot from the very last boss on the 5th floor?

Isn't that a disproportional investment? I can't imagine clearing all 5 floors will be a 30 minute run unless there's a serious lack of content and challenge, in which case it's not going to even be fun to clear it all when you have a chance of not getting the gear you want. So what's the point of that? Waste an hour+ for a single piece of mostly cosmetic loot and then log out for the week? I can't imagine that will ever be a selling point for any player ever.

"Hey did you hear about Crystal Tower? It's a 5 floor dungeon that drops 1 piece of cosmetic loot per week, wanna play FFXIV now? No? Oh..."

I sincerely hope it's not 1 piece of loot at the very end of the entire thing, that will kill it for me, I love how it looks but either it's going to get boring really fast or something will have to change.