I use it 'cause it is easy to use, and it can translate all the languages I want, Japanese, English, Swedish and Finnish, it even ofers you difrent spellings: like what words they use for certain thing in U.S, U.K or academic words and even vernacular words. In japanese it gives you the kanji and other options for writing the word. the only task when you are translating japenese with it is that you must be able to read the kanji/katakana/hiragana.