A great introduction to the history of Europe under Ottoman rule which is often covered in broad brush strokes or virtually ignored in books describing the national histories of these countries.
I found the chapters on the vassal states (Wallachia & Moldavia, Transylvania and Ragusa) particularly interesting.
For a novice like me Sugar's repeated use of Turkic terms for types of people and land use was a bit confusing. It would have helped if he gave the terms an English equivalent but I can see that perhaps there would be good reasons for leaving them untranslated.