The Sauron and Celebrimbor relationship was pretty cool and I was invested in this story.
Also enjoyed the dwarf storyline a lot!
I was very disappointed the Stranger actually turned out to be what everyone suspected from day one. Why keep this fact hidden for two whole seasons if it's not even surprising?
Cool to see Tom Bombadil. I expected him to be much quirkier from the books though.
Adars end was underwhelming. His whole arc never really went anywhere or wasn't clear enough.
I agree with you the Numenor stuff is confusing and not interesting at all.
All in all I liked the second season a lot more than the first but it all feels a bit aimless as there are many parallel stories that don't seem to relate to each other (at the moment) and there is no main goal.