Played only mages the last 2 weeks and I really don't get the complaints.
Did a lot of solo stuff, Duo, party, dungeon and not once had i have to wait for my MP.

Nuking works also fine.

The one thing that bothers me is that mages are still waaaaaaaaaaaaaaaaaay to powerful.
It feels a little odd, if i can take on easily 6-8 rank 45 mobs at r33 with one class and struggle with one Rank 43 mob with a DoW class of the same rank.