Though Gillen's writing isn't quite up to Straczynski's standards, this is a close and a very consistent continuation of his storyline. This one starts off weak, but by the end is really sharp, especially with the characterization and background for Loki and the continuation of the story of William. 
 The two other issues included here, the Siege: Loki and the New Mutants #11, are quite strong as well ... though they're as much precursors to Journey into Mystery as they are Thor tie-ins.