I was big into gaming and computers back then and this is the first time I’ve heard of this.

On paper, it sounds great… A 5200 with more memory and no shitty joysticks?

Compatible with the Atari 400/800 software?

Shit, I would have bought one just for Star Raiders. Of course this was also 2 years after the Amiga and Atari ST battles as well. Why would anyone want an 8 bit experience in that era?