According to the website there are already 500K students and 65K teachers. It seems like the site will need more students. English is an essential language in the modern world and specially in tech. Encouraging these kids to earn and providing resources is a really great thing.

It's awesome that you can set your own teaching hours and you have a lot control. But it has a cost of giving you a lower wage. Depending on where you live the amount you get payed could be very small. But it will be a great way to earn some extra income.