I first started watching this, not realizing that was supposed to be a spoof. It made its way into my watch list because I like John Hannah and thought, why not check this out?
It starts out seriously looking and then goes goofy. Definitely a British version of "Naked Gun" style goofy. :))
Is it perfect? No. Will be there be duds? Flat jokes? Scenes where the "haha" attempt was overdone? Yes.
But overall, it is very much worth watching - if you're into that that kind of humor.