Chuck Swindoll is an excellent Bible teacher. His voice is radio perfect and his "insights" are extremely helpful. His new series of commentaries on the New Testament are a great resource and are vintage Swindoll.
These books will be useful for serious Bible Students, Sunday School teachers, and small group leaders. Swindoll writes in an engaging style without dumbing down the text. Pastors will find helpful points of application that will flesh out their sermons.
Insights on John is the second volume in this series. I received it as a promotion from Zondervan and am very grateful for it. I am currently preaching through the Gospel of John and have found it to be a helpful tool.
This book won't replace the more scholarly commentaries on John, but it will sit very nicely on your shelf next to the the NIV Application Commentary or other "expositional" commentaries.