How Accurate is the UIF Calculator for Estimating My Unemployment Benefits?

I recently came across the UIF Calculator while researching how to estimate my potential unemployment benefits in South Africa. I'm curious about how accurate this tool is.

Can anyone share their experience using the UIF Calculator? Are the estimates generally close to what you actually receive? Also, what information do I need to provide to get the most accurate estimate? Any tips for ensuring I input the correct details would be greatly appreciated!