I agree that Christopher needs to tone down the sales pitch.
That being said, Ku2u loaned me his Freelap system this summer, and it is super-accurate as well as easy to set up and use. It is not cheap, but if you train on your own, it’s pretty much a must in my opinion.
It does not miss reps, ever. That alone eventually takes some sting out of the price. It’s really nice to be able to get accurate 150m and 200m splits when runnning a 200m Special Endurance run, for example.
From a coaching perspective, it would be good to use with athletes on a training day when expecting good results. It’s easy for athletes to peek at the times, so they better be good!