I need a solution for a large, multi-portal site to use a specific type of token replacement while performing at a very high level. I was blown away by the flexibility of the backend. Developing my own tokens took minutes, and the performance is amazing with the new caching feature that allows you to vary by Host, Portal or User, so you don't need to hit the database on every page load.
By far, the best URL Customization module for DotNetNuke. When customer visit our sites, they can't tell from the way the URLs are formatted what server type we use. This module is powerful, flexible, and the support is prompt and helpful.