I've been using Nebula for the past few months.

I really miss a lot of the basic functionality of YouTube though. It's really hard to find videos, especially older ones. If I pause a video, leave the app open, and come back a few hours later it often gets stuck on a black screen, and when I try to go back to that video it forgets my progress. I wish there were playlists. It's very much a bare bones video hosting platform.

I know they're still young and improving so I'm hoping they can do stuff like that eventually.