Well, depends, there's really only one issue of Secret Wars out yet and it's pretty awesome
If you mean the whole she-bang, New Avengers and Avengers and the grand epic that leads up to it, yes I have been reading it. It's been great, with awesome character voice, a feeling of genuine emotional stakes, and cosmic scope.
The reveals and plot twists are also pretty kewl
On the downside, there are major plot points that are just planted there and are never explained to you because they require massive amounts of homework to get the payoff that they are delivering, and that would be okay, if you at least could make out the difference between them, and the confusing jumble of LOST-esque mysteries that eventually do get explained