Deadpool is better than it should be. It's a Fox produced underfunded adaptation of a b-list superhero who nobody had heard of five years ago, whose last movie appearance was royally fucked. It's the first all-out comedy in the superhero genre, the first Marvel movie to acknowledge cussing and humping, the first superhero film to break the fourth wall (narration aside). It's funny, exciting, and surprisingly touching. I thought I was going to like it - I never expected it to be good.
The cinematography, pacing and construction of 3d space and time through montage are considerably more competent than in Star Wars VII. I use Star Wars VII as a metric because you've probably seen it, as opposed to, say, Spring Breakers (which has far better cinematography and pacing and a consciously problematised construction of space and time that make it unsuitable as a comparator when talking solely about the competence, rather than the merit, of a director's work.) The fight scenes are the equal of anything in the Marvel Cinematic Universe, at least for legibility and thrills if not spectacle. The jokes are ribald, surreal, peurile, sharp, self aware, visual, verbal, physical, all that good stuff. I didn't kick the seat in front of me while laughing, but it was a close run thing.
The love story at the heart of the film is really well scripted and acted. Two funny, active, believable, likeable protagonists. Like all romcoms the romantic drama hinges on failure to communicate, but unlike most romcoms neither character is an incompetent, an ice queen, or a simpering child.
So yeah. See it in the cinema. Being surrounded by laughing people is a great experience. It doesn't hit every note, the plot is straight-line simple, but who cares - it's a buzz.