Interstellar is a good movie. It's not a great movie. But I still found it an enjoyable ride.
It's an odd thing to say, because in some ways it's my least favorite film by director Christopher Nolan. Objectively speaking, it's flawed. It feels far too long, dragging on to make sure every last loose end is tied up. Dialogue sometimes feels less like normal people talking and more like scripted monologues. And even by a movie's standards, there are more than a few dramatic flourishes that are just too implausible to suspend your disbelief over.
Despite all that, Interstellar works for me.