The movie is a parody to action-spy movies. It is not about the action, but rather about the characters. The character interactions and relationships are perfect. There are so many little details, like one word or eye contact, that tell us everything.
Action scenes are great, except they are made to be funny and realistic in that way.
The story itself does not has many interesting twists, but nicely follows evolving characters.
Conclusion
This movie is not for people who wants to see pure big action. However, whoever enjoys well thought through comedy, this could be your cup of tea.