Does anyone have long term experience with The Motley Fool stock advisor/rule breakers subscription?

I've been on the Motley Fool (US) Rule Breakers subscription for the last 2 years. So far averaged about 20% gain, though recently a lot of their stock picks have been performing quite badly (granted the investment period is short since I've only been on it for 2 years). Wondering if I just got lucky in my gains or is Motley Fool legit and I should renew the subscription?