One of the biggest hurdles with Minna no Nihongo is that it requires two separate books per level: the Main Text (entirely in Japanese) and the Translation & Grammatical Notes.
The Minna no Nihongo series is famous for its extensive drill sections, specifically and Renshuu C . Minna no Nihongo Shokyu I Dai 2-Han Honsatsu
Whether you are self-studying or in a classroom, transitioning to a digital format offers unique advantages that physical copies simply cannot match. 1. Instant Cross-Referencing and Searchability