Yeah exactly. Is Duolingo the optimal way to learn a language? Probably not, but it's really approachable and not terribly onerous, and it does expose the learn

Yeah exactly. Is Duolingo the optimal way to learn a language? Probably not, but it's really approachable and not terribly onerous, and it does expose the learner to some challenging stuff. The people up thread who say not to do it for more than 100 days probably didn't do all the content and saw a pretty shallow slice of how Duolingo teaches. I'm at 1000 days today, and it's definitely improved my knowledge of Spanish and my ability to use it. I'm a long way from fluent, but I wasn't going to undertake a more difficult language learning self-study plan in the last few years anyway. I wouldn't recommend it to someone who seriously needs to learn a language for work or for immigration or something, but it's been a great use of 10-20 minutes a day for me as a Spanish-curious dilettante.