These books are very handy for the layman who is studying scripture. The pages are broken up with little tidbits of information, application stories, famous quotes, and my favorite, "in a nutshell". What this does is render the books very readable and enjoyable, you are not staring at lines and lines of text, the text is broken up. I have enjoyed using these books and would highly recommend them to any layman. These would not be good for a seminarian student however because these do not go into the depth required for a graduate program.
A very thorough commentary set for a reasonable price. I use the Holman NIV commentary set, crossway ESV study bible, and MacArthur commentary set as I study the word. These books are compelling me, for the first time in my life; with an enthusiasm for reading the word of God (this was hindered in the past due to my inability to interpret some scripture). I am EXTREMELY grateful for the blessings that that these texts provide, i.e., in-depth and understandable analysis, contemporary language (as opposed to Calvin, Poole, Henry, etc.), supporting scripture, etc.
As I wanted to grow in bible knowledge I was looking for some books to help me with that. Though I think they are a bit brief for use in sermon preparation, they are a great help to make the make the most of my daily, personal Bible time, it really has raised the quality of that, as did the Holman OT commentary.