as a book reader I'm kind of annoyed at a couple things.

The whole way they involve Gendry in the story. So in the books there are three prominent Baratheon bastards Gendry, Edrick, and Mya. So Mya is in the Vale and easily could have been added as a 2-3 episode side character doing the role she has in the books of getting people up to the top of the Vale and back down. Edrick and Gendry have both been combined in the shows.

For non book readers Edrick is a known bastard at storms end and eventually Stannis captures him, does his blood leaching and then Davos smuggles him across the narrow sea for his story to die.

Gendry goes on the same trip with Arya but they get rescued/captured by the brotherhood without banners. Arya escapes/gets kidnapped with the Hound. Gendry ends up knighted by the BWB and rolls with them through the books.

The show did some things to combine those two characters but kind of threw a wrench into the overall character development of Gendry and did some bs nonsense to get him back on the screen that really doesn't make a whole lot of sense the more you think about it.

This also happened with Lady Stoneheart and Arya. As well as Ilyn Payne and Bronn.

---