The main purpose of this paper is to study the customers’ evaluation from three similar markets, aiming at finding significant differences among three types of answers. Service quality was measured by using an existing scale from the literature, thus servperf was selected to evaluate three types of answers. Customers of this study came from three similar markets: the Kingdom of Saudi Arabia, the United Arab Emirates and Kuwait. spss was used to analyze the data and one-way anova was run to investigate differences among the groups. The findings showed that there were significant differences between the three groups. Also, the results indicated that except empathy, all other four dimensions showed partial differences