Only giving one star for 2 reasons:
1) The games rarely change and are boring. Playing them every day became so rote and not at all brain-building that I gave up. Bought the family plan (stupid, stupid) and each of my family members came to the same conclusion.
2) They apparently buried the auto-renewal clause DEEP in the Terms and conditions (I am the freak who reads those things start to finish) because I never found it. In July AMEX alerted me to potential CC fraud - through process, couldn't see all charges from July - mid Sept until late September and found the $130 auto-renewal posted in mid-July. Their policy is they will refund if within 30 days. I asked for the refund under special circumstances (CC fraud/identity theft) but they flatly refused, even after escalation to a "manager", sticking strictly to their refund policy without consideration for my circumstances.
Would not recommend this to anyone!