Hey mate, I just updated my rom, and it includes the original Miui File Explorer.
Don't know if it's possible for you, but the way we can select files, edit, delete... is, IMO, more convenient.
Here is a screenshot, it'll be easier to understand.
Still checking this thread to see when the version 3 will be out
Thanks again for you work
Edit : and the issue i was talking about (the wrong storage info) is fixed in the original version!