The problem with these events is that everything has to go back to some status quo at the end. The bad guy needs to be beaten and everything goes back to normal. Therefore the ending is pretty much known and gets me less excited for these events.
Best you can hope for is some characters cross over to the 616 universe or someone gets a new outfit (like spidey in the first secret wars)
So usually the story is pretty entertaining like Axis right now, but nearing the end it always starts to dissapoint