Just got back from WDW. The yellow flies were not a problem. It rained every afternoon so don't forget the ponchos. We were on the 300 loop. It seemed a bit smaller than other loops and there wasn't much space between campsites. We have a rear door on our 5th wheel and we had to park it over the sand at the back of the site to give me husband's dually room to park. He didn't drive the truck for the 6 days we were there. The bus system was very efficient we never waited over 15 minutes to catch a bus to the parks or 5 minutes to catch one to one of the settlements. They had at least 3 ferry boats to the MK so we only waited maybe 10 minutes. We had a blast!!