I enjoyed this a great deal.
Again, it's weird coming into this story, like, twenty years after I stopped reading comics, and having the storyline be so connected. This one deals with the reunion of Hawkeye and Mockingbird, after she had been a long-time prisoner of the Skrull. (Apparently, this set the stage for secret invasion and civil war, which I don't know anything about.)
There is action here, but the heart of the story is the two heroes trying to reconnect. McCann, in a later essay, says he likes Hawkeye because he's the hero we could all be. And he was one the those who lobbied to have Mockingbird com back after the war with the Skrulls--she could have died. He clearly loves the characters, and limns them quite well.
Yes, Hawkeye can be a bit of a stereotype--too much like Shawn from Psyche (who, now that I think of it, may have been based on him)--the insecure guy who covers how hard he works with jokes. His heart's on his sleeve in this series, though, which is good. And the flashbacks suffered by Mockingbird are effecting, and explain well her difficulties settling in. I especially like how they appear early in the book without explanation: too much exposition has ruined many comic books.
The art is excellent.