I find it super easy to care for and haven’t had any issues with rust. It’s more work than enamelled but not much. I just wash as normal with soapy water which is fine as long as your washing up liquid doesn’t contain lye which almost none do these days, dry, then finish drying on the hob ( we have induction so just set a timer and walk away) and then run in a bit of oil. I prefer it to my enamelled dish because I prefer the cooking surface, it’s more versatile, it adds iron into to food, and it’s unbreakable. Enamel can chip off which can be repaired but cast iron even if it’s treated badly can be restored. I wouldn’t used an enamel dish on on open flame or a barbecue, but I frequently use my cast iron.
I also do make the occasional acidic food in there, but I’m just careful not to do it repeatedly and it’s fine, it’s just something to be aware of than a ‘this will instantly damage your pan!!’ It might not be for you and it wouldn’t be good as my only pan (though I’m not sure anything would) but I really like having it around and use it often, but I don’t think I’d have a use case for an enamelled skillet.