Personally it was one of those Jobs that actually worked better as a sub job than as a main - it finally made my WAR able to solo-play with it's TP-based healing, plus with Animated Flourish I got a second Provoke effectively. I loved it's AF though, especially it's AF3 set.
The fact is though, if DNC is ever added to FFXIV it will most definitely
not play like that, for obvious reasons. FFXIV has a completely different battle system and thus is probably more likely to be a straight up DPS/debuffing class like it was in
FF Tactics - TP healing would be too overpowered given TP natively regenerates in FFXIV (which it doesn't in FFXI, although DNC's Reverse Flourish regenerates TP).