I’m not gonna lie, I stopped using Renshuu due to having other resources at hand and because it just looks so rough, but I think it’s great for a free resource. The fact that they offer a shit ton of vocab/grammar/kanji study sets for free and community built ones is reminiscent of Anki, and Renshuu also uses a SRS. Lots of customization for reviews and answer options.

It’s certainly nowhere as eye-catching and addictive as Duolingo is, so beginners are probably more likely to give up than if they used Duolingo. But honestly, that site lost the point of what learning a language was supposed to be about anyway.

Sometimes I feel I should pick it back up, but at this point I want to focus more on reading/watching content for practice/learning.