I think my immediate feedback is that the game cards could be a lot bigger. Anyone out there want to make a ridiculously beefy SD card adapter and corresponding slot? Or maybe even one that interfaces like a puck/block with some keying and locking.
But overall this is 100% on target for my 6 and 8 year olds. They want to play games, not operate a console.
We take them to a Retro Gaming night every few months and I’ve noticed that the X-in-1 consoles (even the brand names) are rarely touched, and all have laminated cards desperately attempting to tell kids how to get into a game. The console UX is paramount.