I've only read the commentaries on a couple of minor prophets in this book, but I assume the rest of the commentaries follow suit..
I don't know Hebrew, so I can't comment on the comments on the Hebrew.
After an introduction to each minor prophet with a discussion on the author, date, theme, etc., the commentator's translation of the book is shown in parallel with the NASB. From there the commentary is divided in two sections which run in parallel: one section with translator's notes and discussions of the Hebrew words and tenses, and one section which is comparable to a "traditional" commentary with references to other verses, information on the culture and context, literary structure, pastor's notes, etc.
I'm very happy with this book and am looking forward to learning Hebrew, and am looking forward to understanding the commentary on the original language! I recommend this to anyone interested in the Word of God who doesn't mind carrying heavy books.