It's just a Remote Play device, and apparently only uses wi-fi - if it used some sort of low latency direct connection when in range of the PS5 (similar to how the Wii U gamepad worked) that would be one thing, but it seems like it just does the same thing as any smartphone with a controller attached (though it'll no doubt be far more expensive than that). It also seems like it's ONLY for Remote Play, no cloud streaming... it feels like an entirely pointless device!
I mean it’s not meant to look different or sleeker. It’s a pro not a slim.
To be a pro though it needed more punch. Some of the graphics comparisons don’t even look any different to my eyes and no disc drive is a massive no from me.