I only think it is a low risk and stable income industrial.
If you like it then you will run it dynamically.
If you dislike it then you would not purchase it.
And also it will depend on whether you are a risk lover or not.
The co妹妹ission income is reliable. You can always get the statements from AustPost to verify this.
Other sales is more subject to manipulation. The only thing you can do is to check the BASs and the tax returns lodged.
Good Luck