>>214142588
Honestly, I hate it but there's nothing better on the market. It helps you build up that initial vocabulary but you have to input along the way and make sure you actually encounter the words you're learning otherwise it doesn't really stick.

>used it for German until ~6k cards before dropping it, felt like it helped a lot as I was climbing the ladder of graded readers
>for Spanish, did only 1k, felt like it was enough and dropped it, got me to native content pretty quickly
>for French I didn't bother and I think it slowed down my progress overall
>for Russian I got half way through a 5k deck before realizing I was going through the deck too fast and that the new FSRS algorithm is giving me less reviews overall but worsening my retention, so I dropped it and plan to restart the deck

So overall, I think it's helpful, but: you have to input and you have to pace yourself, especially with more difficult languages.