WordFence used to be seamless and worked perfectly. Unfortunately, now it constantly asks me repeatedly for my email address for alerts, shows the "start tour" popup with every page refresh in the admin pages, and can no longer get the API key. I have uninstalled the plugin, cleared the table data, and did a fresh reinstall. Same problem. It's been like this for the last few upgrades, and I had ignored it because I figured someone screwed up and forgot a closing quote somewhere.
Whatever update has been added and screwed up the plugin makes me glad I didn't purchase a premium key like I had planned to. I spent that money on Bulletproof instead and dropped my rating of Wordfence from a 5 down to a 2.