What is your opinion about intermittent fasting?

Honestly, I think its the only diet formulation that worked for me. I have shed over 8kg over 3 months with intermittent fasting. In all other cases, I loose hardly 2 kg and it has been frustrating for me. 

These days, I undertake intermittent fasting from 9PM to 12PM which gives me around 15 hours of fasting. I am thinking of invcreasing it by one more hour so that I will get 16 hours of meal free fasting time.