We bought 200 OKW resale in the spring of 2006. Got use of our points around end of May. Booked a trip for third week in September of that year the very day we got use of our points. We are a family of 5 and our kids were 7, 7 and 9 at the time and we wanted to bring my mom. So we got a 2BR at BWV. We wanted BCV but it was not available. At that time there were only these resorts for
DVC: OKW, BWV, BCV, VWL and SSR. All of which had studios and 1BR that slept 4 at that time. You could, and still can, book 5 in the 1BR but had to bring towels and airbed and sheets for 5th. After that first DVC stay, we would go as family of 5 and get a 1BR and bring airbed for DS. Until 2011, when we began getting 2BR. Now, with kids all about to be in college and being busy, we do many studio trips with 2-4 family members.
DH and I did a BLT studio. It is small. But your kids are little still. It's smaller than a regular hotel room and similar to a cruise ship cabin, if you have been, but a little larger than a cruise cabin due to the galley kitchen which you don't get on a cruise cabin. I like the layout with that galley kitchen because you can do make up in the mirror there while someone is in the shower. Also allows for more storage and ability to have some meals in room. The pull out is small but your kids are small still. My twin DDs-18, almost 5'9", share a bed at hotels all the time and would kill each other if they had to share the BLT pull out.
EDIT TO ADD: We did not stay at our home OKW until 2009....3 years after buying. We also added points at other resorts since...BWV as it became a fave and we like Food and Wine trips and HHI after a lovely stay there. So all the resorts are good and you will get to your home resort eventually. I now use BWV and HHI to book strictly there at 11 months and use my OKW all over at 7 months.