Quality Clinical Lab DBA Express Laboratory Services LLC provides the most accurate diagnosis expediently and professionally. However, there seems to be a few issues with their service. The lab is wheelchair accessible, which is a plus. They also offer a convenient payment system, accepting both debit and credit cards. However, some clients have reported issues with their lab results, including incorrect diagnoses and delayed results. One client had a particularly traumatic experience, where they received results for another patient, leading to a misdiagnosis and a lengthy and stressful ordeal. Additionally, another client had a lab test done incorrectly, and had to redo the test and pay more copays as a result. While the lab seems to have a good reputation, with some clients praising their cleanliness and experienced staff, these issues are a cause for concern. The lab's working hours seem to be standard, with long hours on weekdays and a shorter day on Saturday. However, it's unclear how they handle issues like lab result errors, and more needs to be done to address these concerns.