I've completed the AWS Certified SysOps Administrator Associate Training and my guide was Mr.Sathish Kumar. He is such a wonderful trainer who makes sure we are comfortable and we understand all the concepts completely. He patiently clears all our doubts and I would say his way of teaching is excellent. I was given multiple tasks practically which helped me more in understanding all the concepts. I would strongly recommend GangBoard for AWS Certified SysOps Administrator Associate learning. End of the day, It is worth the time we spend to learn in GangBoard.