5 stars: It's very helpful for the persons who are going to take exam although we are able to play like a video game. And also it might be help to keep their motivation who want to study hard further.
5 stars: This is an English learning game for Japanese speaking people. Is it possible for English speaking people to learn Japanese the same way? (edit: that doesn't answer my question, but thanks anyway ^_^
5 stars: I like system of automatic adjust your english level for questions :) Also feeling just a game rather than study.
3 stars: Ok to study English ...