I got this complex from Glenn Pendlay, who prescribes it early in a training cycle to improve strength and promote hypertrophy. In the variation in the video I do:
Make the jerk really hard because your legs are extremely fatigued. Also, keep the bar in your hands a long time.
My 300-pound complex was my limit – exactly where you should aim to put your strength complexes. If you're a strong-ass mofo, this is the time to really get after it!