Drop sets can make your workout much shorter — up to 70% less time — than regular sets, because you do more work without resting, but this wasn’t proven in the study, just noticed in two of the five studies.

Drop sets let you get the same muscle-building results in about half the time because you don’t rest between weight drops.

If you're already experienced with lifting weights, doing drop sets (lowering the weight after failure) doesn't help you get stronger than doing regular sets, as long as you do the same total amount of work.

If you do the same total amount of work, using drop sets won’t make your muscles bigger or stronger than doing regular sets over two months.

Drop set training enhances muscular endurance (repetition capacity at submaximal loads) to a greater extent than traditional resistance training protocols with matched volume.

Doing drop sets (lifting heavy, then lighter weights without rest) builds strength just as well as doing regular sets with the same total weight, at least in young men who already lift weights.