Recaptcha had a good run but it’s time for it to die imho.
I got 0.9 and then 0.3 after refreshing.
Do you have experience with this? My understanding is that there's still trivial work arounds (See chrome extension "Buster") or services where you pay to have a human go through it for pennies.
If somebody is targeting your site then your captcha will be useless no matter what.