"While the action rarely flags, the running time is needlessly grandiose and the commercial calculation that underpins everything puts limits on Vaughn's bent for transgression." (Jake Wilson, Kingsman: The Golden Circle: Not an easy film to like - Sydney Morning Herald)
"It's James Bond on laughing gas and too much of everything". (Peter Travers, Kingsman: The Golden Circle' Review: It's 'James Bond on Laughing Gas,' Violent as Ever - Rolling Stone)
If you really liked the first movie, there is enough in the second to make it worth seeing. But it tries too hard for effect.
There is a narrow line between attempting tongue in cheek early Bond humour and stretching audience engagement too far. Elton John as CGI action man (for instance) for many will be a step too far. For others, it will add to the phantasmagorical razmataz.