The article deals with the problem of applying the Kano questionnaire to make an assessment of quality features of an educational service by students. The authors present the usability of the Kano questionnaire for this purpose. The main aim of the research was to identify those attributes of an educational service that influence its quality from the point of view of a student of an institution of higher education. At the same time, the authors intended to examine whether there are differences in the evaluation of the qualities of this service between the groups of the so-called loyal and disloyal students. The survey research proved that there exist statistically significant differences of two proportions in the students’ assessment of the quality attributes of an educational service, while a hierarchization/classification of these attributes in most cases is similar in both of the examined groups.