Well that’s quite the thing.
They couldn’t/didn’t get the rights to the third age, so instead we get much older stories. Stories after the fall of Morgoth but still during the end of the era of Elves and Númenor. Before the rise of the kingdoms of Men.
There’s a lot crammed into eight episodes. One might argue too much. Leaves some stories a bit thin. But really, having seen them, I don’t know what I’d cut.
Worth a watch. Looking forward to season two!