Hi from Germany,
love the idea of this plugin, seems to be more streamlined than CFDB at first glance. However, it does not play well with the backend, at least with my configuration. There are several JS errors that stop jQuery from running, so no more ajax for me. Plus: There is a php waing, when activating the plugin first and then go to the admin page of it: Invalid argument supplied for foreach() ... This waing disappears, when the first CF7 form is sent AFTER activating your plugin, maybe you've missed a check for an empty array?
Immediately after deactivating your plugin, all JS errors are gone and all things work as expected.
Maybe in a more matured version I'll check it out again. Anyway, thanks for your work.