Concepts in the video are clearly and succinctly explained. Jon’s style, tone, and the effective use of imagery captures your attention and makes the videos seem interesting. The Exam Tips & Strategies section is particularly helpful in making clear which specific services are needed for highly available, scalable, fault tolerant, secure, cost optimized etc. architectures. Of course, you’ll need to supplement the video and Reviewer with additional study as well as lots of hands on labs and the TD practice tests. Overall, great job and thank you to TD team!