策略注入应用程序阻止在现实世界的应用

The PIAB of the Microsoft Enterprise Library looks like it could be used for some pretty cool things. Many people were questioning how it would perform in real world applications, due to its use of remoting-based interception techniques. I haven't heard much about it recently and am wondering if anyone has had good or bad experiences from a performance standpoint to share.The PIAB of the Microsoft Enterprise Library lo