I used Google Translate and this is what the author of the port wrote:
1, according to the official miui 03.04 version update, given the instability was reflected in the previous version, this version did not make any changes to the system, dpi, desktop layout, theme harmony, Dolby and so no, but because of the particularity of Jupiter and miui official restrict third-party transplants every opportunity to open a systymui error prompt, select OK does not affect the use, do not like the wait for the next version, or use a more perfect sixth edition, 5.2.13 is that now the official update miui Nothing substantial update, not the pursuit of the latest version.
2, not the perfect place, the default theme calendar, weather icon blank, you can use other unofficial theme of self-correction. No Hall and breathing lights.
3, transplant rom, hard to say perfect, affecting as much as possible to use bug fixes.
So it seems that this version is still not ready for our devices...
Please let us know if you happen to keep it running without many force closes.
Also, you didn't provided the password for the download.
Anyway, I'd install it without hesitation if not for the fact that I cannot make nandroid (or, in this case, TWRP) backups. And this is fundamental for a daily used main phone. Having to restore everything by hand on a work day is not possible in my case.