Ep4 is probably the best episode so far. I actually found myself enjoying it, even if had some odd writing and dialogue here and there.
Elrond Plot: Overall decent. I feel like Celebrimbor's scene was thrown in to give him screen time. The tower's made ridiculous progress given how it feels like every other story has progressed like... a day or two. Similarly, Elrond teleports back and forth to the dwarves made me almost wonder if they were flashing back to before he returned. Overall I like him and I like the dwarves though. This would probably feel better if every other story wasn't moving substantially slower.
Galadriel Plot: I don't feel like Numenor's stance with the elves is portrayed well, nor does the negotiation to get their help feel satisfying. Galadriel still doesn't feel like someone I want to root for. Effectively she gets saved via tree. Also somehow putting the 4 (5?) guards into the jail cell off screen got a laugh and not in a good way. Halbrand is still Sauron. Now that Galadriel's leaving the island, I wonder if things will become more enjoyable, as they seemed to have some decent characters there.
Arondir Plot: This place feels really awkwardly written. This feels like it should be the easiest plot to write, but feels off. The elves are apparently blind and get captured off screen, then the villages all flee to the tower the elves were in, but don't bring their food and don't seem to want to go back to get their food. Arondir also pulls some weapons out of nowhere, didn't look like he got them from orcs, but it was hard to see. Orcs and sunlight continue to be inconsistently portrayed.
Yeah it worked there cause it was clear Sauron was mostly dead, and the PJ movies reduced him to like an eye in a tower.
Sauron's status in this show is much more murkier. We're not shown him being 'killed' in the opening, and have every reason to believe he's still around and active, but everyone but Galadriel is an idiot.