Plus on a given album page, like https://castleratband.bandcamp.com/album/into-the-realm-2 , it has links to "Other people liked this", and the genre tags. It's pretty good for discoverability, though maybe not as smooth as the soulless algorithms of spotify.
Bandcamp sold to epic and then got sold to some other vultures so they might turn to shit, but until that happens it's a good, profitable, seemingly equitable platform. Artists got a big cut, you got drm-free music. The idea seems solid, if you can avoid the "infinite growth at all costs" and "i'm gonna sell out, fuck you" traps.