I tested this plugin on both WordPress 3.4.2 and 3.6 it worked correctly on both WP versions. I had one small issue or interaction with another plugin which the author fixed amazingly in just minutes.
This plugin is really useful because it blocks access to wp-login.php which many Bots look for. You can pick a unique name for the new login path. This is not security by obscurity because no bot will not find the wp-login.php program. This is a simple solution to a nagging WP problem.
Since April 2013, a large botnet of 10's of thousands of compromised servers has been attempting to break into WordPress websites by continually trying to guess the username and password using the standard wp-login.php program.