There is now an online review of my book in Biblical Theology Bulletin, by Peter Oakes (U. Manchester), who is a member in the Context Group and has done very important work in applying social scientific methods to the study of the New Testament. Oakes highlights some of his hesitancies regarding my arguments, which I will not address here except to say that my book does challenge the way in which the sectarian model has been applied in the past by scholars such as John H. Elliott (another excellent and very influential scholar in the Context Group). Despite such disagreements, Oakes sees my book as a valuable contribution, it seems:

This is a very ambitious and impressive book. Harland manages, astonishingly, to marshal his evidence in such a way as to engage in a serious critique of about a dozen of the leading scholarly conclusions on the nature of interaction among Gentiles, Jews, and Christians and the relative civic context of each.

For previous reviews of my book and some excerpts, go to my book information page.

Speaking of Biblical Theology Bulletin reminded me that I recently wrote a review in that publication of the following:
Judith M. Lieu, Christian Identity in the Jewish and Graeco-Roman World. Oxford: Oxford University Press, 2004.