...without spoiling anything, I will say this...

Rating: 9/10 (28 May 2014)

I came into this movie with the highest of expectations, and it did not disappoint. "Days" ranks as one of the best Marvel movies to date, but is it the best one?
Marvel just gets better and better with their movie adaptations, and the way the time travel was handled and explained, it actually worked.
The acting was superb, but then again, what do you expect from this all star-studded cast? McAvoy, Fassbender, Stewart, McKellen, and Jackman are amazing established actors, but this stage belonged to Jennifer Lawrence as Mystique, and to Evan Peters, who looked like he was having the time of his life in the role of Quicksilver.
There are going to be the detractors who are going to say the film had way too many characters and there was no character development. If anything, each character had decent time to showcase their powers, and in a film like this, that's about as much character development the audience needed (for those who do not follow the comic books).
So, in response to my earlier question
As much as I would love to give this movie a resounding "Yes" as the best Marvel film to datethat distinction still goes to "Captain America: The Winter Soldier."
And this is coming from an X-Men fan since '85.
But, damn, "Days" is an extremely close second