Plugin is just great. It is too complicated for bots to solve and is simple enough for people.. in my opinion it is better that recaptcha. I used it with virtuemart 2 and it has solved my problems. There is only one thing that is even more phenomenal than plugin and that is developer support. They answered to ticket same day, solved issues and for one free template that is more than i could expect! I forgot to mention it was 31 december and they still answered very fast! Great work!
I recommend it to everybody with spam problems on virtuemart.
Thank you for your excellent review