So despite it not being as good as the first, Kingsman 2, for the most part, is the ideal sequel. It raises the stakes, it doesn't contradict details from the first movie (they pretty much stopped the movie the explain things I was ready to call BS on), it has enough throwbacks without repeating things from the first movie, it's funnier, but most importantly, it actually had something to say *cough * American politics *cough*
For the non-spoiler negatives, it's slower paced in addition to being a longer movie than the first. I had to scratch my head at Fox News being everyone's primary news source (I waited for a wink and a nod that never came).
It's a solid follow-up, but that surprise factor is gone.