I daily drove Zen for months. The design and implementation are overall fantastic. Unfortunately it still has chronic performance issues, gobbling up CPU randomly - and they don't seem to be too focused on despite it being a commonly reported issue.

I don't want to burn out my battery quicker than usual, so I was forced to switch off. I'm currently trying Orion instead and have been loving it - aside from several poorly implemented websites just not working on it. And the Cloudflare false positives, but that's as much or more an issue on Zen.