I wouldn't say it's a bargain for the artist when there's plenty of services that offer that for free.
From a purely money perspective a small artist would probably lose money here while it may earn money in places like Tidal, which have much more audience.
Let's not lie people. It's not a bargain. $10 a month is a lot for that service. Maybe from a "San Francisco" or other rich American city that is Pocket change, but from most of the world $10 a month is a considerable expense.
Other thing is if you want to morally support ot because you really like that model for whatever reason.
To be honest, I don't much see the point. Of you are going for the complicated route (aka not using established platforms) are you are even considering self hosting, putting out your own website to sell music is easier and cheaper. And it's actually very common for artists to have their own website. You can find static hosting for a few bucks.