The present study aimed to evaluate the newly compiled English book for the third grade of senior high school, currently called the 12th grade, and the previous English textbook for pre-university students. To this end, 80 experienced teachers, with the experience of teaching both books, were asked to complete an eclectic checklist comprising 38 items and evaluating the book in terms of nine major criteria, namely General considerations, Vocabulary, Grammar, Speaking, Listening, Reading, Writing, Pronunciation, Supplementary materials, tasks and activities. Following that, 10 teachers were also interviewed in order to deepen the quantitative data. The findings indicated that the teachers were more satisfied with the newly introduced book to the educational system. Furthermore, the mean values revealed that the teachers rated the speaking and listening sections as good or satisfactory while they ranked the supplementary materials criterion as the least satisfactory one. As regards the other criteria of the checklist, the findings demonstrated that the teachers were satisfied to some extent. In general, the results confirmed that notwithstanding the dramatic positive changes in Vision 3, it still requires to undergo major revisions in order to meet the EFL students' needs. Hence, the results would benefit the materials developers in order to locate the areas for improvement.