Why Celebration? It's cute but the reality of living there is not the same as visiting. We know 2 couples who have lived there and are happy, but most locals do not see Celebration the same way that tourists do. Traffic can be difficult, areas surrounding Celebration aren't as magical, etc. If you have done your research and have decided this is the place where you want to be, then your realtor is going to be your best person to help you find the right apartment.
That said, there area a lot of nice areas that are close to Disney that aren't Celebration. When we first began looking for a house, we thought Celebration would be at the top of our list. And the more we looked in person and began weighing out traffic, amenities, distance to daily needs, what we could get for our money, the lower Celebration went on the list.