Am using this plugin on most of my sites and my clients'. It secures the site in such a way that the configuration can be reversed at any time and the information accessed, even customized if you have the skills to edit your own .htaccess file. There is one fairly complex site for which BPS was incompatible (too many and conflicting re-directs). That was not a BPS problem and I received great and courteous support with my troubleshooting. I highly recommend BPS.