(English isn't my first language!)
It's a really good story!
The first few chapters are a little bad, but the last few chapters (14th at the moment) seems to be written by someone completely different! The quality goes up too much!
Well, if you like Ruthless Heroes, the like that would kill every single rapist, killer and supervillain (the bad ones) out there, this story is for you! Other than this, the protagonist utilizes magic, technology and a lot of skills, it's really interesting to see! This Marvel world has the X-Men and all, it's really interesting.
As every other story out there, there's obviously some things that people could end up disliking it...
Some people here commented about the karma wish... You can simply ignore it! This wish affects only his past world, there's basically no significance to the story.
Other than this, some people can end up disliking the fact that the author utilizes some DC Heroes name as the MC Hero name in a MCU story, but it simply a name, nothing more!
Well, give this story a chance 'till at least the 11th chapter!