When paying money I expect to have a more indepth lecture than you can find on youtube. He is good at explaining, but some examples should be explained better, or not brushed over quickly, as well I would suggest to make a couple more videos, that take parts as e.g. confounding and explain it in depth. All in all nice but with some a little bit lacking here and there. I love the fact that they aren't very long, that way you can focus through the whole lecture before taking a break
I loved how he summarizes key concepts in simpler way. One video view and I understood what I lacked from med school.
It made epidemiology very easy to understand, remember and apply it to my practice. It helped me a lot in appraising available evidence and use it in making appropriate and prudent clinical decisions in taking care of my patients .
I thought it would be more thorough. Unfortunately many videos out there are just summaries and do not try to redress the problem of poor lecturing during medical shool that leaves students like me looking for a service that will give more in depth lecturing. I would have liked more explanation of concepts, e.g. P values, null hypothesis, etc.