Despite the explosive growth of social commerce, there have been many complaints by customers using social commerce services. In order to understand why customers utilize social commerce sites even though they complain about the services, we developed a comprehensive model for the satisfaction and dissatisfaction. This model employed Hertzberg''s two-factor theory and Herzberg''s expectancy disconfirmation theory. To test our research model, final survey data was collected from 222 respondents with prior experience using social commerce sites. By testing our model using PLS (Partial Least Square), we found that region-based information was positively related to the satisfaction of using social commerce, while discounted price was negatively related to dissatisfaction in social commerce. We also found that the relationship between discounted price and dissatisfaction was negatively moderated by the number of product reviews. The implications of these findings for both research and practice are discussed.