Summary: I found this quite useful for starting off japanese but once you want to continue learning the language it is recommendable to find other sources. It is still recommendable as one of the best japanese learning games on the ds.
Summary: The interface is quite rough, clunky and sometimes not intuitive. The DS screen resolution is very low so they should of increased the text size as sometimes the kana is very small and it makes it very difficult to tell the difference between similar ones e.g. か (ka) and が (ga). Even with all its shortcomings it is still reasonably useful when used in conjunction with a real course.