If you've been reading Immortal Hulk, this is a great addition to the run. Thor makes a cameo in which he and Jen lift weights together. It's pretty funny, but they also have a pretty deep conversation about immortality. The whole scene lasts only a few pages, but Al Ewing has a knack for fitting a whole lot of character development and depth into a such a small space.
The pairing of Thor and She-Hulk is one of the only valuable contributions Jason Aaron has made to Thor. This interaction between the two, along with their exchange in the Empyre aftermath, has me thinking Marvel will do more with this. I'm hoping a competent writer will explore their relationship some more. A writer like Al ^$&*#ing Ewing?!?! The guy has been on fire since Loki: Agent of Asgard. I really want to see him writing Thor some day.
Sorry, but I think totally differently, Aaron did not make any good contribution to Thor, all he does is keep destroying all of his rich history.
And regarding Thor's relationship with Jennifer, it is totally absurd and meaningless, to top it off the writer also destroyed She-hulk.