How effective is NFP compared to condoms?

Sure, here's a question based on the paragraph that simulates a questioner's tone with a word count of no more than 300: "I've been hearing a lot about Natural Family Planning (NFP) as a method of contraception, but I'm not sure how effective it really is compared to condoms. Can you explain the differences in effectiveness between the two methods? Is NFP reliable enough to prevent pregnancy, or should I stick with condoms for better protection?