"Overall course is awesome. John is highly knowledgeable, practical experienced, approachable, very clear in explanation. Exceptional."
"Excellent course. Learned so much new stuff that I can use straight away in my work. Very concise, well organized patient and highly knowledgeable. Overall an amazing experience from him."
"John has excellent teaching skills, very talented. Love his enthusiasm and passion for technology. "
"Very knowledgeable Teacher, Amazing."
"Our instructor was Very Knowledgeable. He was very clear and was able to answer questions/successions."