Just installed it on a test site to replace Wordfence (after I got tired of them trying to get me to Upgrade To Premium), so this is just a first impression.
The interface is far more user friendly and offers even more options and features, and the Pro version (which actually doesn’t offer any additional features) is far cheaper the Wordfence.
I can’t see any useful feature of Wordfence that doesn’t have an equivalent here, and some of the features it offers (like hiding your login) would require additional plugins with Wordfence.
I have to see how it works, but if it is as good as it looks, I’ll be switching my other sites to it fairly soon.