I have been taking Chika Sensei’s N4 course for one month, and I’m finding it extremely helpful. The daily lessons, quizzes, weekly reviews, and homework all help to reinforce learning of different language concepts. And then there’s the wonderful interaction with Chika Sensei herself! It’s amazing that she provides daily feedback and encouragement. I highly recommend this program if you’re interested in taking the JLPT exam or just want to learn Japanese.