It is fair to say I am watching Dororo (2019) with absolutely no knowledge of the original 1969 TV anime or 1967 Osamu Tezuka manga. As a result I cannot comment on how good an adaptation it is, in any useful sense; my understanding from secondary reading is it is making some plot changes, but beyond that I do not know anything. So, that reservation in mind, would I recommend Dororo (2019)? Yes. It’s a series which has in its first three episodes generally presented a praiseworthy attention to detail, some good action and a straightforward plot which hits some generally tough moral beats with the uncompromising didacticism that I grew to like about series like Harlock SSX.
Note: This article discusses the plot details of episodes 1-3 of Dororo (2019) including the way it handles the narrative depiction of suicide in episode 3.