Free 2 month trial of the 2 DVDs at a time, unlimited DVDs per month "Ultimate" plan, valued at $29.95 per month. This offer does not include blu-rays.
Just make sure you cancel the subscription before the first payment date, and you won't be charged. You have 7 days after the cancellation to return all DVDs.
Offer is available to new subscribers only. Existing subscribers are eligible for 50% more rentals for 2 months.
I got 2 months free on a previous offer and cancelled before the 2 months were up. Just be aware that cancelling involves calling a 1300 number and being on hold for a few minutes before a rep becomes available; can't be done online. Otherwise no problems.
Oh, and they will hang on to your CC details even after you have cancelled, just in case you want to reactivate. Be sure you are ok with this.