Oh -- i would definately recommend it for preschoolers!

They (Disney) has all kinds of supervised kids activities thru the day -- you just sign up for what you want to do .. and there is a small fee for each project.They also do "feild trips" - like we went to a wildlife preserve on a Disney guided tour one a.m.
We went during Feb vacation week -- my mom has marriott timeshare, but was lucky enough to get into Disney HH, and then when we got there, they upgraded us to a 2 bedroom -- it was HUGE.. very very pretty.. we had a cottage overlooking the pool, which is AWESOME!! The weather for us was about 60-65 most of the week -- little cool, but a heck of a lot better than new england in Feb!! LOL, Then the last two days were were there - it got up to mid 70's!!

It is a beautiful resort, in a beatiful area! Great side trips too -- We went to Savannah for one day (it's only about a 30 min drive) - which i highly recommend!! That is probably the prettiest city i have been to!