When I found that web site, I thought it was the greatest thing! I noticed that most people on the transportation board here don't think the site is any good, though (inaccurate) I dont remember noticing any big discrepancies the last trip when I had a lot of resort ADRs and needed various transport besides just resort to park, but I didn't have any really tight reservation times or anything.
Maybe use our laughing place as a good guide, but check back here for personal experience on any tricky or crucial plans. . .