When I looked at your module on its Drupal home page the first question that went through my mind was, "Does this work with the other cache modules or does it replace them, such as memcache which I currently use?"

After reading your note about refactoring I presume that we should disable the other caching modules then enable cacherouter. However, it would nice to have a note on what to do with the caching modules it replaces/enhances, probably under the "install" steps to confirm what we'll have to do to make the switch.

Also, I'm not sure if it's still around but a note (or table) on compatibility with modules like "Advanced Cache" might be appropriate as well.

This allows people to easily plan out their change over when choosing to use your module.

I guess you could have this info. already in the README but it really should be right on the Drupal home page of the module, at least in summary form.