It's a fun, fast-moving story with several fun twists and a lot of cool visuals. The Tales of Asgard back-up feature is also a visual treat; a disguised Thor allows himself to be captured by Trolls as part of a plan to free other Asgardians also held in slavery by the evil creatures. In terms of story, Thor actually has too easy a time busting out of troll prison to make the yarn as exciting as it should be. But Kirby's layouts are fantastic, making the story fun to just look at.
Next week, we'll finish up September 1964 with a look at the Avengers and the X-Men.