Why choose CodeIgniter

I used Codeigniter for my CMS since the beginning, but I left it out during the change in Codeigniter 3.
Now I'm back to it fully because I found that CI4 is much more flexible and powerful. Flexible because you still can do what you want to do as native php coder, and Powerful because you don't really need to invent everything, there are already libraries that are ready for you.