Ask IH: Do you use video marketing? What are your successes & challenges?

Everyone is talking about how video is the future of content marketing, especially with all of these statistics coming out about how beneficial it can be for your traffic, conversion, and revenue.

I've been trying to do some video marketing of my own and want to hear from the wonderful IH community. Do you use video marketing? If not, why not? If you do, I'd love to hear your thoughts on the following questions:

What types of videos do you create?
How frequently do you post?
Where do you post?
What strategies have been successful for you? Unsuccessful?
What aspects of video marketing do you love and enjoy?
What aspects of video marketing do you hate?
What are the most challenging parts of video marketing?
What are the most time-consuming parts of video marketing?
What do you feel limited by? Any shortcomings or roadblocks you've encountered?

Would love to hear all of your ideas. Thanks IH!