Wasn't even planning to try them but my friend who sells tomatoes kept insisting they helped her understand the whole supply chain better, so I went to see what the fuss was about. What got me was how the person explaining things didn't make it sound complicated like most agro people do, they broke it down in a way that made sense even for someone like me who sells hair not crops. The value for money sef is there because you actually learn something instead of just throwing money around. Honestly if you're into farming or any agriculture business, they're worth checking out.