Posting this question here since it does not belong to any credit in particular.

We are considering getting a subscription to the web-based reference guide on the USGBC website. Their description says that it has some extra guidance to supplement the reference guide as well as presentations, tutorials etc. It does not seem to have a shorter trial period subscription to see if it works for us or not. If anyone has this subscription, what has been your experience with this web-based reference guide? Has it been useful? It would help to know before we decide to subscribe (or not). 

Any feedback would be helpful.