What is the best crypto exchange in South Africa?

Could you elaborate on the factors one should consider while searching for the best crypto exchange in South Africa? Is it the user interface, the number of cryptocurrencies available, trading fees, security measures, or a combination of these? Also, are there any specific exchanges in South Africa that are known for their reliability, customer service, and compliance with local regulations? Understanding these details would greatly assist investors in making an informed decision on which exchange best suits their needs.