We have stayed Poly, WL and YC club level with our 3 kids in mid-late August over the years. Our favourite is Polynesian CL, where we normally get a resort view room. We get our view “fix” when we sit in the lounge and look out at the castle, so we don’t bother paying to upgrade our actual room view. We really enjoy the food/drinks in the lounge (especially once our youngest turned 21) and have never encountered a situation where we couldn’t get seats in the lounge. The volcano pool can get busy, but now we tend to spend our time at the quiet pool so it doesn’t really affect us. The short walk to the TTC to get the Epcot monorail, even in the summer heat, is definitely a plus.