Pre orders for the Exa-Arcadia and games went on sale mid November of 2019. My kit came very well packed. Their was a box for the Exa-Arcadia and a different box for the game I bought (Aka & Blue Type R)
The actual size of the Exa-Arcadia hardware is not large at all. Here is a shot of it next to a Sega Ring Edge 2:
Another shot of the Exa-Arcadia with the game installed:
Here are some day one game play videos of the Exa-Arcadia and Aka & Blue Type R.
Exa-Arcadia startup and Aka & Blue Type R score attack day one:
Exa-Arcadia and Aka & Blue Type R arcade mode day one: