The map is a bit small and it gets kinda monotonous after a while but I'd say this is a good learning tool for beginners. Especially features like the collocations you can find by flipping cards in your album are awesome. That being said, I've been learning Japanese for almost 5 months now, and there weren't really a lot of words I didn't already know. Also, the game only teaches you nouns, and only those broadly applicable in a city setting in Japan. I'd say play this after about one month of learning and you'll get the most out of it. Finally, apart from the educational aspect, the atmosphere is really cozy and I love the implementation of irasutoya art.