What are the advantage of using Restic over EaseUS ToDo File BackUp?

I use EaseUS ToDo File BackUp currently, what’s special about restic?

I don’t know that product you’re referring to but a good start is to look at each feature set and price models etc.
Also a good indicator is to check for Documentation - whether the product covers all your needs.
https://restic.readthedocs.io/en/latest/index.html

Hope this helps.