perhaps it is hard initially to work with it, but step after step, we have discovered, as web designer the long story (versioning) since WP 2.3 providing more more features.
Compared to the other famous polylang here with xili-language plugin:
- no new table as termmeta
- language code in link is not limited to 2 chars
- no cookies
- in post edit table: possible sub-selection by language
- a powerful class to improve doityourself multilingual child theme