Here are my thoughts:

The gameplay additions like lock-picking were pretty fun. Non-linearity in combat encounters was particularly great, you can be direct or discreet. The game certainly doesn't waste time reintroducing you to the mechanics of Uncharted. As for the exploration, it was good as always, although the open sections were maybe a little weak.

I loved the dynamic between Chloe and Nadine and how it progressed. They complement each other very nicely. Chloe's development into becoming more selfless was of interest, she's come a long way since 2 and 3. Asav was a decent villain, but not as good as Rafe. His ambitions and goals weren't that engaging, although he fills the role he was meant to.

The production quality was pretty surprising for what was intended to be a DLC. You can tell they put a lot of effort into the graphics, voice acting etc. I did notice that there aren't as many setpieces, but I guess that makes the train sequence stand out a lot more which is cool.

I’d say the game picks up when Sam joins, I enjoyed fighting alongside him and everyone putting aside their differences to take down ||Asav|| before it was too late.

I'm gonna miss this franchise, but I'll always remember it. I'd love for there to be more adventures, but all good things must come to an end.

My final ranking is probably 4 > 2 > LL > 3 > 1.