It's failing because of their mobile only idea. They've now added Chromecast and Airplay support, but it might be too little, too late. Missing Roku support leaves a huge gap (40% market share).

They sent out a questionnaire about two weeks ago asking about how the user wants to consume their content, and a few days ago they released the Chromecast and Airplay support (which came as no surprise to me) but that's just a bandage solution.

I have no issues with their content, just how they want to force me into horrible ways to consume it! Will subscribe when Roku support lands.

Great point!

Comparing directly, would you pay for Quibi in addition to your slate of Netflix/HBO/Hulu or would you replace one? Content wise it still feels the least compelling

It would be an addition, Quibi has a way to slim offering to replace any/all the other offerings. I liked some of their originals, and that's the only reason. Their short form (10m) episodes are also welcomed by me, since I often find myself needing a quick break to reset myself.