Debbie-
I think you girls will love the pool, DS (6) really enjoyed it more than the water park-lol!
The Pepper Market is not really confusing once you see it. You enter thru an area near the Maya Grill entrance. Someone seats you, give you a laminated menu & some paper cards (like the size of a business envelope). On the back of the menu it shows you where, in the market, the different food stands are located. The menu breaks down the food offerings by stand and shows what is included & the price. Each day we were there a couple of "special" dishes were listed on a board near the entrance & showed which stand to visit if you wanted that food.
When you see something you want, just visit that food stand, give them your paper & they will stamp it and you give you your food. Your table server will get your drinks, condiments -if you need them or anything else you might need/want. We always forgot to ask for an extra plate since DS shared our food many times & the server was right there with whatever we needed.
When you are done you head for the opposite end of the Market from where you entered & give the cashier your papers, they total things up & you are all set. We also used some Disney Reward Dream Dollars at the Market with no problem.
HTH!