Not really seeing a big market for this. It's big for a handheld, getting into game gear territory, and the battery life is low for AAA games, even considering portable chargers being available. Memory is also an issue here since games won't be targeted towards its specs as with the Switch. Hades on Steam reccomends 15 GB of Free Space. 5.8 GB on Switch. Doom Eternal is 37GB for single player, compared to 18.8GB on Switch. So, I guess you'll have to be buy a nice size SD card if games run off them.
As a physical console, it's not up to snuff with PS5 or XBox One. We'll see how well it runs games down the line. They may opt to treat this more like a PC and have constant small upgrades, but that would take away one of the key advantages of a console, the simplicity of knowing every game will run on it.
To me, it feels like the market for this is more along the lines of a tablet than a Switch. It's PC, so you can run mostly whatever you want with it. So, it will be great for all your apps and such. It's a bit bigger and clumsier than a tablet, but if you want a tablet that can play games well, that's a reasonable trade off.
The thing with this is that I don't see anything that it does better than any other product. If you happen to need the unique set of capabilities it offers in equal measures than great. But I don't think that's a large market.