Fire Magic is still 'good', especially if fighting 3 or 4 mobs at once, but with all the recent changes, I would consider it now to be 'mediocre' in performance compared to other skills, whereas it used to be my 'go-to' spec.

I have recently tried fire with ice, priest, druid and battle chemistry (in gold max-crafted, auged & modded gear). All performed well, but none have been outstanding and I have effectively 'retired' my fire magic specs.