I agree uncertainty remains the main problem but we'll know soon enough with the LATAM launch.(if it fails again, well, farewell my friend...

) but if it takes off, it's hard to believe it will close.(internet is getting better and better everywhere)
Lack of value ? Well, depends of your expectations... Indeed, there are more games on Xcloud/Gamepass but as you can see, it's limited at 1080P on Samsung Hub and games remain in your library as long as you sub.(they don't come and leave, early adopters will have 200 free games in their library in 2023...)
As for free tier, here's the most impressive for me :
Here we go, that fucking frog will bring RDR2 into the conversation again, again, and again.
Of course... It's a game of the gen... Non playable on other cloud services right now.
60 FPS on Stadia, 30FPS on PS5/Series X and the only one at 4K on Samsung Hub.
Same for AAA like Cyberpunk. It's not on Xcloud, available on GFN but only at 1080p on Samsung Hub...
I don't say Stadia is better than the other services, but there is value for sure...