I would rate the solution's stability eight or nine out of ten.
WSO2 Identity Server offers high stability and comprehensive integration features, including Single Sign-On, making it ideal for systems with Microsoft Active Directory and LDAP servers. Valued for its keystore feature and seamless customer identity management, it faces challenges with high availability, complex setup, and inadequate documentation, affecting coding ease. Lack of full-featured auditing modules and inflexible pricing require attention, deterring some tech buyers seeking efficient identity solutions.