I'm not saying it's the only option but it's a good option for the price if you just care about printing stuff.
And the options you mention aren't real alternatives. For €180 my A1 mini is really great value, and so was my P1S. I haven't seen anything that comes close to the print quality and printer design for a similar price. An ender would be of similar price but it looks like a science project and it's not nearly as capable without a lot of manual tuning and upgrades.
Prusa is way too expensive for me. Anycubic and Creality are cheap Prusa knockoffs that need a lot of tuning to perform well. We have a lot of CR-10s and Enders in the makerspace but they're always out of order for maintenance or some upgrade.
And regarding the slicer I really don't care which slicer I use. It just has to do its job.