Yes. If you take them and then do well on the AP exam in the spring, you can walk onto a college campus with course credit already in your pocket. And trust me, college admission deans love to see that on your record, so it can make the difference between being accepted or not. Absolutely, take 'em and good luck!
Yes, the Ap high school and classes are worth the stress and work as they are very important. The exams are done in spring are guarantees that one walks in to college with a course credit in their pocket thus increasing your demand in many fields.