My DH and I made advance tee times. But, I am keeping an eye on the weather. We have to cancel, I think, 24 hours ahead of time, and I really don't want to play in pouring down rain. We are playing Oak Trail, which is the 9-hole, walking course one morning and the Lake Buena Vista course using twilight rates another day. Neither of us are the best golfers, so, if we don't get through all 18 holes that day, it won't really bother us.
Anyway, you might want to just call and get an idea if there are a lot of tee times left for your trip. If they are starting to get really booked up, you might want to get advanced tee times.
Good luck and have fun!