We were there 1-14-04 to 1-21. No illness here. We also stayed there in Jan. 2003 and had no illnesses.
Friends stayed in August 2003 - no illnesses. Other friends stayed - Dec. 2003 - no illnesses.
I think sometimes people get sick while there and blame it on the hotel.
Viruses run rampant in this world. Look at how many people get to Florida - Planes and trains - small areas, lots of people = millions of germs. Even if you travel by car you have to stop at rest areas, gas stations, restaurants, etc.
I say go and have a good time, just remember to wash your hands at the parks. I always carry baby wipes with us when we travel, they are great for a quick clean up.
Something to think about. When was the last time the guns on Buzz Lightyear were disinfected?