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He's an experienced trainer with a real life experience in the topic he was teaching. That led the course to cover the most important topics which interests any developer working in the field, and small details would be easily overseen if he was not working in this platform. Moreover, he was giving the course using the latest versions of iOS and Swift (10 \ 3) and that is a huge advantage to be adapting such new technology in short time.
The teacher addressed many relevant topics for clean coding with practical examples.
I really liked that there were a lot of practical exercises in which you could put the learned immediately into action.