Impressed. Akismet broke on me, and I was looking for a defence from comment spam. Simple Firewall does that well, and a lot of other useful things also; in fact, it’s very comprehensive. It is ridiculously easy to install and configure, and the documentation is excellent – more than can be said for so many plugins. It’s pretty sobering to discover just how many attacks there are on my admin login. Another excellent reason to install this defence, given the many many hours of labour-of-love that go into a web site.