We usually go in Jan. or Feb. but had a GG at FW this past Oct. and had the best trip to Disney ever!
Make your ressies NOW! Cancel what you don't need later! They won't be available for long!
We went last year during the same time you are going and the only complaints that I had were the heat and crowds. We were not too surprised about the heat because it was very hot in GA during that time last year, but............we were VERY surprised at the crowds.

I was dumb enough to think that we were the only ones taking a whole week off during Columbus Day holiday week.

Plus, so many schools are out for Fall Break. Oh well, it was still the best week of vacation we have ever had

just don't be surprised by the crowds during that time. Then again, we went to FW for a week this past January and it was crowded then too! I don't think there is an off time anymore!
Have a fantastic trip and don't skip the Halloween party!