Yes I have, and no it's not. The 70-220 exam doesn't stress general security principles and practices enough, and it's completely Windows-centric. It's also more focused on how to design a secure network (as the exam title indicates) than it is on managing a day-to-day security routine within the context of a proper set of security policies, practices, and procedures. Those latter areas are of course where the industry certs focus their attention, and what gives them their appeal and value.
This was first published in February 2001