There really isn't much here for me to document, since efficient has done such a good job already. So instead I'll be providing links to sites providing information on it.

 

This Link is directly to Efficient Networks Enternet 300 PC FAQ main page. Contains FAQ's for different versions.

This Link is directly to Efficient Networks Enternet 300 for Macintosh FAQ.

This Link takes you to DSLreports's page on resolving browsing delays when using Enternet, and many many other issues. Good information from the field and some useful resources!