Some things about his movies are very good: the cinematography, use of practical effects over CGI, scale, and good scoring. Sometimes he does drop the ball; while the score on Interstellar was epic, the one in Odyssey was bland and did not really mesh with what was going on on-screen. And he's a bit of a one-trick pony, with a rather dark and depressing tone in most of his movies. Works in Interstellar, didn't really help the Odyssey, ruined the Dark Knight. And his convoluted way of telling a story. Tenet was a mess as a result (and the time stuff just didn't work), but it worked fine in Interstellar and the Odyssey.
Loved: Interstellar, Dunkirk, Oppenheimer
Liked: the Odyssey, Tenet
Didn't care for: his Batman movies, Inception, Memento.
Enough for me to go see a movie on the strength of him directing it.