Works well, good support

The only reason I’m not giving 5 stars is because I did need support to get it working properly. The plugin’s admin and documentation was not enough. Perhaps this is just due to the complicated nature of Google’s Recaptcha and its choice of versions. In any case, support was very prompt and though it did take several iterations with to get what I wanted, it all happened pretty quickly and cheerfully. And I have the unpaid version, which seems to do what I need so far.