Semantic technologies promise to solve challenging problems of current enterprise information systems, e.g., the integration of heterogeneous information clients and the evaluation of complex data dependencies. As many of these problems also apply to coordination applications, recent research initiatives have proposed to integrate coordination models with semantic technology. In this paper, we present such an integrated coordination model which combines logic-based reasoning with a reliable semantic subscription mechanism. We present a formal definition of the model's behavioral semantics and investigate the added value of using semantic technologies. Finally, we draw first conclusions about the practical applicability of the proposed approach based on performance benchmarks of a prototype implementation.