Although every review or video that mentions it can run ps2 and gamecube. It can't. Also aethersx2 has been abandoned and is closed source. Also android sucks.
But so far its a really nice ps1 portable device. Usually I'd use my vita but I'm always worried about damaging it and they're not exactly in production so I wanted something more disposable with L2 and R2 buttons. Now i can play Abe's Odyssey/Exodus on the train :D
Yeah he did Aethersx2 under a pseudonym, but people figured out it was them due to the UI and some PCSX2 forum posts I think. After that there was some major fallout regarding death threats towards them, discord drama, entitled tech illiterate users, and a whole bunch of other stuff. Which is why development of aether is abandoned.