Also, it's worth noting that you're paying monthly for a quarterly report.
In other words, over those 3 months you pay for the first quarter, your score will be the same.
If you plan on checking your score again in exactly 3 months, and you can remember to cancel the subscription, then you'll save $17. Otherwise, the benefits decrease towards a $1 savings per quarter. Actually, more like $0.75 if you're using the promo code.
Food for thought before setting yourself up for a rebill...