I signed up for Daily Burn using a 3-month free subscription. I marked on my calendar when I needed to call to cancel before I would be billed. I was billed on the 7th, even though it listed the 9th as my final day of the trial. I feel like I was tricked into paying for the service. I responsibly kept track of my final trial date and yet I was still charged. I personally believe it isn't good business practice, or ethical, to trick customers into paying for services.
Bottom Line: No, I would not recommend this to a friend