I don't know if you have the same issue but I have never been able to watch a video on Dtube from start to finish. It just doesn't load. I tried uploading short clips today on my other profile to see how they go, but even then I can't play them through. My internet is pretty decent and has no issues playing HD youtube videos.
Gave up on doing any kind of editing just because the video's don't work. https://steemit.com/dtube/@simplylizelle/wxc0nny6

It that's the case for most people though, then are people actually clicking through and watching your videos or is it the fans who upvote because you made a post and auto upvoters who still lend power to your post?

It has good potential, but I think they still have a long way to go to make it more user friendly.