I really liked the first Kingsman movie, a nice comic book nod to James Bond with a council kid called Eggsy becoming the latest recruit to an overly British spy organisation. In the sequel it's more of the same with the Headquarters being destroyed and Eggsy needing to unite with his American counterparts to take down Julianne Moore, the leader of a global drug syndicate and a fan of 50's Americana.
It's more comic book than the first and more disbelief is required to enjoy it. I know that it has divided my friends into love it/hate it camps. I did like it despite the over-the-top Americans being brought in and an Elton John cameo was unnecessary.