Yeah I’ve had one, still do, it never gets used because it’s a project car. Compared with one button press and coming back to a print in a few hours, it’s a constant nightmare of debugging, print issues, and manually changing filaments that aren’t stored in an airtight container and get wet. It’s not even competition, as much as I would like to support open source tools the Prusa stuff is an order of magnitude more expensive than a A1 Mini that will make a reliable print every time.
It’s like saying a bicycle is a serious contender to a train, they both have kind of similar things going on but you’d have to be insane to suggest that they do as good of a job as one another at the things people actually want to achieve.