I enjoyed it even more the second time around
I rewatched this one tonight, making this the second time that I've seen it. And I have to say, I enjoyed it a lot more the second time around than I did the first.
Being a big fan of the story who has not only read the book but also seen the 1974 and 2010 adaptations, the 2017 version was weighed down for me by expectations and comparisons to everything that had come before it, and that undoubtedly hampered my appreciation somewhat. But this time I cast all that aside and just enjoyed it on its own terms and really had a good time with it.
While there are still a few things I'd have rather seen done differently--a bit more emphasis on clues so that we understand how Poirot is making his deductions would be good, as well as improved CGI in a few shots (or perhaps no CGI at all)--all in all I think this is a good adaptation that particularly excels visually and has some REALLY beautiful cinematography.
With its slight modifications to the original story, I also think this film justifies its existence. After all, what would be the point of a new version if it was just going to give us the same thing that previous versions gave us? From the opening prologue to the brief action beats to Branagh's mirthful Poirot, I think this film succeeds in giving us something different while still essentially remaining faithful to the story.
All this is to say that if you watched it once and weren't super-enthusiastic, consider giving it one more look. I enjoyed it the first time, but definitely enjoyed it MORE the second time and will bump my rating from a relatively weak 7 to a strong 7.5 or even 8.
I am really looking forward to Death on the Nile and can't wait to see what Branagh gives us with that one.