I've enjoyed elements of all the Terminator sequels post-T2 (even Genisys (sorry)) but not really loved any of them and this was no exception.
I liked seeing Linda Hamilton back and thought that she was both credible and vulnerable again. Davis and Reyes were good too, especially Davis.
I wish I had seen more of the Rev-9 searching and trying to find Dani, using its smarts rather than just outright murdering people. I don't think having a Terminator that separated added much that having two separate Terminators would
Seeing the quality of the writing in the post-T2 sequels, you really do get to appreciate (again) how good a story craftsman, Cameron is (or at least, was back then).
Kerrraig's done a review podcast that you may want to have a listen to, if you're into that sort of thing.