I have been reading Vitringa's book with tremendous spiritual profit. It goes nicely with Teellinck's book "The Path of True Godliness". Both books are fine examples of the spirituality of the Nadere Reformatie. I found this review of Vitringa's book on the OPC website. I felt the review was a bit short given the spiritual importance of this book but still insightful. I highly recommend both Teellinck's and Vitringa's books. They have the same spiritual wisdom you find in the writings of the Puritans.