ems009-san konnichiwa,
Thank you for your post!
Good question.
As you mentioned, we recommend Nihongo Dojo series, but the Beginner part.
It contains Beginner series Season 4, 5, and 6.
You can follow these 3 series easily by adding Learning Paths "Nihongo Dojo: Beginner" to your My Pathway.
Of course you can study them one by one.
Have you had a look at Learning Paths? It's a new way to find the best lessons for you!
Click LESSONS menu on top, select LEARNING PATHS. You'll find various Pathways on each level.
Open a Learning PATHS page, and click 'Add to Dashboard' button. You can see the lesson button on Dashboard and access to the lessons easily!
Hope this helps,
Motoko
Team JapanesePod101.com
P.S. After studying Beginner series Season 6, I recommend Lower Intermediate series Season 6. It's a bridge course from Beginner to Lower Intermediate level.