I think most people are WOW-ed by it's R rating. I didn't laugh throughout. I have heard much better jokes but will say it was decent enough

The fact it was R gave them the freedom to add content that fit the theme of the character, which in turn made the movie good.

So either choice is a perfectly acceptable response to your question.

Both, R rated and it was bloody hilariously funny. The r rating helped it be as funny as it was! I can't imagine a 15 rated movie having the sort of jokes that film had! Even my mate that hates superhero movies loved it!