Useful HSS, for daylight balance.Fast for talent
Great size/power balance.
Notably faster/more reliable at 1/4, 1/8th, if full power is needed,1200w is suggested.
Excellent for fashion / talent
Note that, Minimum output is more limited than AD600Pro/AD400Pro if shooting location portraits with low f1.2.
Usefully bright model light.
Well made housing, clamps, buttons etc.
Fast recycle, and HSS is useful for outdoors.
If price is a consideration and no HSS required, DP range are excellent value, nearly as fast, but QT range is much more versatile and faster for professional shoots.