Falcon engine’s ability to block brute force attacks at Apache level, instead of PHP/MySQL level, was the most important thing for me to keep Wordfence installed.
Caching was a nice addition, but I’ve quickly reverted today back to WP Fastest Cache that also sets correctly cache headers, something that Falcon engine didn’t do (among other things — feel free to check your sites on gtmetrix.com with each cache solution).
Now I will probably seek an alternative to Wordfence, one that also blocks brute force attackers at Apache level. Any suggestions?