One amazing thing you get to use with Windows Server AppFabric is the Dashboard feature.
It allows you to monitor your services hosted on the cluster. Though it doesn't show you anything about your cache items, it still helps in monitoring your hosted services. You can view all your service instances, the requests and calls made to the services, errors or failures and almost everything you'd like to see about your cluster.
Open the AppFabric Dashboard page by clicking the AppFabric Dashboard icon within IIS Manager extensions in Windows Server AppFabric, which appears in IIS Manager as AppFabric.
Read more about this here: http://msdn.microsoft.com/en-us/library/ee677236(v=azure.10).aspx