This sociological study of rural SE China was important for its time (the early 1980s). After 1972, the PRC started letting in journalists and academics on carefully scripted tours of model villages. For the next 8 years, countless books and articles were produced from these tours presenting naive glowing reports of peasants whistling while they work (William Parish and Martin Whyte's "Village and Family in Contemporary China" largely excepted). Mosher's book provided a necessary corrective to that uncritical tidal wave, pointing out the darker side of rural life under the PRC dictatorship.
However, since the late 1980s, there have been many book length village studies by top western scholars and locals, and tons of other scholarly work on late Maoist, early reform China (see Jonathan Unger "The Transformation of Rural China" for a collection of outstanding articles by a top veteran). This scholarly work, unlike the 1970s claptrap, present a balanced view of rural China under the PRC. In this new context, Mosher's book is one sided in the negative direction.
Another reason this book is dated is that the one child policy, which gets ample attention in this book, was much more rigid and brutal in the 1979-85 period than it became in later periods (peasant resistance forced the regime to ease up somewhat). Thus, Mosher's volume is useful only for reconstructing a history of the early 1980s phase of population policy, not at all representative of the entirety of PRC population policy.