First, the bad things: Boba Fett and Bo-katan Kryze.
What left me really confused was the inconsistency of Bo-katan. She is a woman of tradition, as showed by her history with the darksaber, but when she confronted Boba she told him that he wasn't a true Mandalorian, then hinting the at the fact that it was because he was a clone. One of the best known Mandalorian tradition, after "kill everything that moves", is "adopt everything that moves". For Boba, Jango was his father, and according to Mandalorian culture, Jango was his father: Jango accepted Boba as his kid and realised him in the Mandalorian ways, thus, being Jango a Mandalorian, Boba is a Mandalorian, and Bo-katan saying such things makes no sense for her character.
No one died: I may seem to be overreacting, but I really thought we were gonna loose a lot of people. I was sure that at least one mando was gonna die (I heard a lot of people theorize that Boba had been brought back just so he could have a better death, I honestly thought that they were gonna kill blue mando girl for drama in the middle of the episode, when Gideon shot Bo-katan I honestly thought she was gonna be dea??) and some other secondary character too.
Tie fighters: I just love when they go aaaaaaaaaaa
Dark troopers: they did a very good job in my opinion, they looked scary as hell, and when we first got rid of them I knew they were gonna come back, but we really got in the mind of the characters and go dragged away and forgot about them, and the suspense when they came back was maybe a but too long, but it really made you feel the hopelessness that everyone felt in that moment
The darksaber: first things first, I loved to see Din and Gideon fight: it wasn't the type of saber fight we're used to, it was a bit slow and less acrobatic and it showed perfectly how the two of them are not Jedi, they're just simple men with long sticks that know how to fight. Now Din is the rightful owner of the darksaber, and I think that the possibility of him having to to deal with being the rightfull ruler of mandalore is beautiful. Also him not wanting to fight Bo shows us how much of a softie he actually is and I love it.
Luke Skywalker: as soon as the X-Wing landed and the dark troopers turned to him I knew it was him. I honestly hoped we also got to see Cal Kestis but I do love to see my favourite twink on screen. We have a lot of ways the story can go now that Grogu is with Luke, and we will have some really nice things next seasons I'm sure. Also the way he killed the dark troopers? Awesome
Grogu and Din: the Child asked for the permission of his dad and honestly that was beautiful. I loved it. Upon seeing him maybe for the last time, Din said fuck death watch and decided that his ad'ika deserved to actually see his face and that broke my heart and was so sweet.
R2D2: best droid ever. Love him. Best character in the star wars universe. Was in the episode for two minutes and it made it 100 times better.
Boba and Fennec: they now rule the hutt influence in Tatooine? Whatever is coming in 2021? I love it.