The Better WP Security version was AWESOME!! missing a tiny feature or two.
The iThemes is TOTALLY CRAP!
It has destroyed EVERY site that was updated on multiple servers.
** WARNING **
DO NOT RUN THE UPDATE ...or accept your risk.
YOU HAVE BEEN WARNED!
I had to rename the plugin folder to get each blog working again.
...not to mention, after running the update, it causes FireFox to consume all my system resources, forcing me to complete reboot my PC just to get it usable again.