The author has been strongly committed to Kosovo independence - his partisanship shows through on most pages.
The book has some excellent background material not available from open sources elsewhere. The author grasped the theoretical principles of asymmetric warfare quite well. However the discussion of tactics (including some factual errors) shows a very limited understanding of practical military affairs.
The author totally ignores subsequent Serbian claims that the KLA committed some serious atrocities against the local population, and played a role in the expulsion of the Albanians - the claims may be spurious, but they should have been addressed. Since there is a fairly long section on post-war events, the ethnic cleansing of the Serbs and other non-Albanians (and this is NOT spurious) should have also been addressed.