Is this site good for someone who wants to learn a new language? Did you learned a new language with the help of this site? Are you fluent?

I recomend esperanto

I recomend esperanto

It's not the question.

I've used Duolingo for a few months, maybe a year. It helped me with my English, with the grammar and such mostly. I'm kinda fluent but it's more because I lived in an English-based country for a year, helped me a lot.

Overall, it's a good website/app to learn languages. They do provide Esperanto from English.

https://www.duolingo.com/course/eo/en/Apprends-l'esperanto-en-ligne