This really worked for me. I used it to brush up on Spanish before traveling to Central America. I had studied Spanish in school but never felt comfortable speaking. It seemed overly simple. However I followed the directions exactly. I was shocked at how effective it was. I had the confidence to speak in situations that would have caused me to grapple for words in the past. Successive units quickly add terms and expressions but the pace is amazingly manageable.
To be fair to the people at Innovative Language, don't cr@p all over them due to a technical issue on Audible's part. I usually download audio books in Format 4. That version came in corrupt, and I was only able to hear, "This is Audible." The Enhanced version works perfectly.
Also this is a short, free preview of their box set, which is a rehash of the audio content from Japanesepod101. This maybe more convenient to a few of us. As far as content goes, this is great for the beginner. Maybe even better than Pimsluer's Japanese. I still believe you should use more than one program to learn a language because different programs will tackle a language from different angles. But if you're a newbie, this series is a great start. Then I would incorporate Micheal Thomas. Later on Pimsluer's. As you learn, also immerse yourself in Japanese culture and media. (websites, KeyHileTV, manga, etc) Also learn Kana, Katakana, and Hiragana.
Don't take my word for it, download all of the freebees, and try out the lessons for yourself.