The feature that I have found to be the most valuable is the ease of deployment.
WebLogic Suite excels in integration with Oracle products and services, offering comprehensive control and scalability. With robust deployment features and stability, it delivers a reliable application server experience. Though it provides excellent technical support, the high licensing cost is a drawback. Improvements are needed in restart capabilities and external connectors. The implementation is complex compared to competitors, requiring coding knowledge, and support can be slow with inadequate expertise.