I always wanted to have a double language website, I did have one a few years ago when I found a good plugin called Xili language (I think) but then it was discontinued (as all the plugins for WordPress) so I decided to keep the English version and delete the Italian one.
But having an Italian version was always on my to do list, I tried other plugins but each one of them has flaws and I always ask: “will they keep up with new Wordpess version?”. So I decided to look for another way to have both languages.
At first I thought of stop using WordPress and start using Joomla since this “script” has a way to have a multi-language website, but I didn’t want to learn everything again, how to use it and how to code a theme, so I looked around a bit more.
At the end I opted for the multi-site version of WordPress. I think it’s the best way to have a multi-language website.