Definitely a niche product, given how few people would still have working older consoles and want to play on them using modern controllers but good on them releasing this.
I mean it’s not really that niche for 8bitdo, it’s kind of what they do.
Funny enough, I’ve been looking into supporting my local retro game store after I found out that a PS1 was $70 on their shelf, and most PS1 games were under $10.
The only thing holding me back has been the god-awful ergonomics of the original controllers. So the thought of using my PS5 controller has re-piqued my interest.
Look into the Retro Fighters Defender as well. It’s about the size of a DualShock with ergonomics more similar to DualSense. I have the Bluetooth version for my PS3 but they have a 2.4ghz wireless for PS1/PS2 and has pressure sensitive buttons.