The results of the empirical study of student psychologists’ and consulting psychologists’ perceptions of difficulties of psychological counseling are presented in this article. Comparative analysis of perceptions of psychology students and consulting psychologists of difficult and ideal clients was conducted. It was demonstrated that psychology student are inclined to perceive qualities characterizing difficult client to be causing more difficulties in the process of counseling, in comparison with the consulting psychologists. Qualities that were perceived by the study subjects to be the most important characterizations of the ideal client, were identified. The existence of reliable differences between psychology students and consulting psychologists, both in their perceptions of difficult and ideal clients, was demonstrated. It was determined that the differences in the perceptions of the study subjects are related to the qualities, that facilitate establishment of contact between a psychologist and a client.