Evaluating existing foreign language programs on a regular basis is essential because program evaluation leads to more effective programs. Therefore, this study aims to evaluate the modular intensive general English language teaching program applied at a university in Turkey by investigating students' and English instructors' perceptions of different program dimensions, such as the materials, teaching process, and assessment. The data were collected via questionnaires filled out by students and interviews with the English instructors at the preparatory program. The findings of the study show that the modular system should be discontinued as it has certain drawbacks and should be replaced by a more manageable and feasible system considering specific contextual constraints, such as the number of instructors, classrooms and teaching resources. Also, it was found that there are certain aspects of the curriculum that need to be improved in order to develop a more effective program. It is hoped that this study will lead to more evaluative studies in foreign language teaching programs.