The United States Postal Service location in the San Leandro Plaza is generally well-received by customers. The post office is open on Saturdays, which is convenient for those who have limited time during the week. While there can be long lines at times, the postal workers are described as friendly and polite. The service is praised, with one customer having an "absolutely amazing experience" and receiving knowledgeable, helpful, and attentive assistance from a specific clerk. However, some customers have reported encountering rude or cursing individuals, though this can be avoided by treating the postal workers with respect. Overall, this post office location seems to provide reliable and satisfactory service to the community.