I highly recommend this tour. Very cheap. Adults were $4 each and kids $3 each. You can't find a better deal. Plus you get a bag of potato chips at the end. We got 2 bags; kettle cooked potato chips and some sort of veggie chip. We got to have a taste of potato chips right off the line, still hot...delicious. They do more than just potato chips. They make pretzels, popcorn, tortilla chips, cheese puffs. Check it out. Me and my 10 year old niece and 8 year old nephew loved it.
I booked our tickets online. It was easy. They ask you to arrive 15 minutes early and wear shoes. You do go outside about 3 times to go to the other buildings so if it rains be prepared. It's not long outside.