I usually don't think twice about plugins but this one saves me so much time and worry it's crazy. I have the premium version on 10 blog sites. Not only does it make it easy to block the bad traffic (and there's a plethora of bad traffic out there, guys) but I can stay on top of website problems with the live traffic reports I would miss otherwise. It has opened my eyes, I have better peace of mind now that my blogs have a chance at being safe and healthy. Excellent, must-have plugin.