How can you ask if it offers value without specifying a price?
After using OnionOS, the only thing that matters to me is the OS. I have a Retroid and Android gaming is clumsy. I might as well use an attachable game controller to my phone and have a better screen and CPU than any retro handheld.
I think the fundamental issue with Android that can’t be fixed is complete power down and full boot time.
With a custom Linux, instead of sleep where there is minor battery drain, the handheld can turn itself off completely for no battery drain. Cold boot time is like 10 seconds. It means the hand held has a battery charge whenever you want to play it and you don’t have to wait.