Completion of Vol. 1 should place you at a skill level on par with JLPT N5 or CEFR A1.
Volume 2 is intended to further raise your abilities to N4 or A2.
Sentence patterns: Almost all the basic sentence pattern for beginners
Kanji: 317 characters
Vocabulary: Approx. 1,100 basic words used in everyday life
Time requirement: Approx. 200 hours