Don't know Ukrainian, only Russian )
So, the context is -
Dmytro Zaitsev has asked about CodeceptJS because he want IE support in tests. So I proposed TestCafe as solid solution with same features, but I didn't work with it, so I'm not sure that TestCafe is good for IE.
Its really cool that you have such experience. I'm looking to TestCafe now but afraid of pitfalls or other non-obvious things.