Viewly does seem to have a smoother viewing experience, though don't they limit the upload to 100mb?
When you duplicate your YouTube videos on Viewly, do you also make a Steemit post sharing your video, thus creating two posts about your video on the Steem blockchain, or do you only do Viewly?
I only use View.ly which posts directly to the STEEM blockchain and your Steemit profile. The 100mb limit definitely sucks but hopefully that will change soon.