I took a DSA course taught by Amit at ScholarHat not long ago. He is one of the most knowledgeable and engaging instructors I have had so far. He always taught in a user-friendly manner without overusing layman's terms; very willing to share his knowledge not only on DSA and Java, but how we can apply what we learn in the field and in the interview process. He always made sure his students understand what has been taught and why we need to learn that. In addition, he has setup a Discord Channel and encouraged his students to ask questions on there, and he will always give you his comments and recommendations on a more efficient solution and how to tackle similar problems in the future. If I'm given an opportunity, I will take another class from Amit without any hesitations.