I can only speak to the Hebrews study guide, but I found it engaging, easy to follow but also filled with lots of new ideas to consider in my studies. A great introduction for someone wanting to go deeper.

I was expecting a study guide focused on the text of 1 Peter: its context, historical information, structure, content, etc., just as the Hebrews study guide of the same series offered. I was greatly disappointed to be immediately confronted by feminist ideology through which the author stated her intent to interpret the whole letter. There is a place for feminist theology, but it's not in a study guide for 1 Peter. If you're interested in a feminist's take on 1 Peter, this will be useful, but if you want a general introduction and pointers for understanding, I don't think you'll find it here.