As long as Roku is coming pre-installed on televisions, it does not matter what else is out there. Now fully 1/3 of all smart TVs sold have Roku as the operating system. Up from 1/5 from a couple years ago.
I am glad you pointed that out 12x, I forgot to mention. Roku is also a walled garden, which is another strike I see for them. They are trying to create their own add supported system. I have 3 smart tv’s and do not use any of the apps or roku that came with them. I went out and bought a firetv and xbox 1 that allow me to load any app I want onto them.
I have never tried Roku so I can’t say anything about their system.
Andy