Yep, you should go see Deadpool.
Don't bring the children - but, of course, you should know this already. It is one of the finest from comic to screen transformations that has yet been made. The humor, the fourth wall breaking, the violence - it all fits together to tell a twisted love story that will have you begging for Deadpool II.
Stay for the end credits. ...Some character named Cable just may be in it and that is a good thing.