When I first got my puppy, he had a couple intestional parasites. I signed up for the 30 day free trial. It was so simple to fill out the form and the vet submitted his medical records, next thing I know there are 3 checks sent to me! Honestly wasn't expecting anything at all! The thing I liked most about this company is that they don't get any credit card information for the free trial! It's very low pressure, if you want to sign up after the trial I recommend doing it before the free trial is over. If you wait, the 30 waiting period (that was waived to start out) will come back into effect. So way to avoid that is to sign up just before the trial is over. I liked how simple it was I signed both my dogs up!