D-tube is a game changer because it is just like youtube and steemit combined but better because it is decentralized and better for active bloggers who also want to vlog. The only downside is D-tube takes 25% of your author earnings so your post / video has to make decent income. D-Tube is decentralized so it will probably have mass adoption by steemit users everywhere. D-Tube is worth the time and effort because you can make double you income on steemit by posting your videos from steemit to D-tube. D-tube also has alot of steemit whales that can upvote your videos /blogs on D-tube so you have a better chance of growing. Also D-tube can be used to resist youtubes centralized platform base because youtubers rely on Ads to make money but not D-tube.