My son recently turned 13, he is a big time online gamer. I can only control how much he's gaming and sitting in his chair only so much, due to me only getting him on the weekends. He recently spoke with me about how unhappy he has become with his body. I know I couldn't get him on a highly disciplined workout regime like I do for training in MMA and Boxing. So I immediately thought about jump rope, if he could get it down, he could easily knock out a good cardio work out in 10 min. I remember an old Boxing coach told me that if I can speed rope for a good 10 min. a day, that it was the equivalent to jogging 3 miles a day. So I purchased 2 of these. One for me, and one for him to take home. I really like how simple it is to adjust between heights of the jumper. The ball bearings in the handles are very smooth and can easily learn as a beginner to speed roping in no time! By the second day and after getting my son's jump rope just to the length he liked, he really took off! He was doing a medium paced, consistent jump by the second day. It took a little practice for him at first but after he figured it out, he really liked it. Now back at his mom's home, he takes at least a 5 minute break for every 55 minutes he's on the gaming computer to see how many jumps he can knock out. With the display, it's easy for him to record his daily amount of time and how many jumps and calories he lost for that day. It's awesome for my son, because he is able to push himself harder and beat his previous daily goal. He'll be back in shape in no time! And as for me, I really like mine too, easy to track amount of time on it and make sure I hit my daily goal of jumps. It's A LOT easier on the feet and knees than running 3 miles a day!!! Oh and I just purchased a third one for my son's mother because she really liked it too!