I actually kinda like DT. Im a fresh air S/W which uses air primary and swaps to fire when necessary.
Start with air, use your skills/overload then swap to fire; then with warhorn as the secondary weapon you can use Heatsync -> Wildfire -> DT -> phoenix then swap back to air. Once you swap back to air, you have a bunch of Might stacks assuming you landed DT and Phoenix in the wildfire and got the combo. Granted, its not easy to land those 2 skills in the wildfire and connect with the enemy, but when you do its pretty devastating.
i play pretty much only PvE