Pros
Richer Education is a very nice company to work at. I am a full-time students and can decided the days that I want to work or not, it is totally up to me. They also provide all the material that you need for teaching which is very helpful as it doesn't require preparation on your end. The activities are very fun too! It is low effort to work there compared to being a freelance tutor as they find the students for you, prepare the material, deal with the parents' expectations. You only have to teach, (have patience), and be paid. It makes the whole process very relaxing!
Cons
The only downsides that I can see are that if you are used to teaching to one child at a time as a freelance tutor, this will be a chock. At Richer Education you can have classes of up to 15 children which can be challenging. Furthermore, if you agree to do a week camp, you are working all day with only a half-an-hour break at lunch, so it gets intense.