I have been anticipating this but have had better things to spend my limited time on. I have more than 135 sites I need to convert to https and they are load balanced. I don't think letsencrypt handles load balanced sites yet. My management is against wildcard certs. This might push them over the edge in favor of wildcard certs.
DO you have a url for documentation that shows how to set up the certs? Our certs are on each web server and not in the load balancer. I suppose we can also put the certs into the load balancer but I don't have control over that.