A Facebook check-in service that allows users to check in at various places and broadcast their location to peers has gained attention recently. However, little is known about why people continue to use the service. We built an integrated model applicable for use within the social network context. We based this study on an expectation confirmation model (ECM) and related technology adoption literature, and examined data from a random survey of 205 users. The results indicated that the direct path between perceived usefulness and continuance intention and satisfaction was non-significant but that perceived playfulness exerted a significant influence on satisfaction and continuance intention. In addition, users' satisfaction was influenced not only by confirmation but also by perceived playfulness. In contrast, privacy concerns did not seem to influence the direct path between satisfaction and continuance intention. Usage frequency was an important indicator in determining user continuance intention. Overall, we found that an integrated model of the ECM had a better explanatory power of Facebook check-in service continuance compared to the ECM by itself.