I'm pedantic enough to think the poll question might be unclear (Is average enjoyable, or bad but not offensively so)?
One way to look at it is to consider cost. Was this worth 25 bucks for the main Spider-Man issues?
And we can consider whether the various side-stories (Gold Goblin, Ms Marvel, etc) were enjoyable.
There was some good in that the artists are solid (in the main material at least) and it was fun to see a demon possessed New York where cars come alive, even if it isn't an improvement over the Micheline/ McFarlane Inferno tie-in issues. The event did have some changes to the Marvel landscape, that are promising. It was annoying that the Ben story ended so indifferently, especially since this is also the payoff to the whole 18 (or so) issue Spider-Man: Beyond run.
Although now I'm thinking how smart Michelinie and Mcfarlane were to add single issue stories with A-list villains (Mysterio! Lizard! Harry Osborn Green Goblin VS Hobgoblin!) to the proceedings, and how Conway connected it to his ongoing stories in the satellite books.