Congrats!
That holiday guaranteed week studio may well be gold! No better place for the holidays than Wilderness Lodge.
Here's a guaranteed week tip from someone who recently learned the hard way: If you don't want to use your guaranteed week for the coming year, make sure to call and cancel the auto reservation
before the 1 year prior point, when the auto-reservation happens. I got lazy this year for our guaranteed week (week 43 at the Poly), thinking I'd just cancel it online without having to call (because I hate to call), but found that they take the extra points in a separate transaction. So if I cancel/reschedule that 2018 reservation now, I'm still out the points upcharge. I should have known that, and maybe you already know it, but I thought I'd share my mistake in case it helps someone else. I'll spend a few minutes to make the phone call from now on!
I'll admit that it is very nice to get a "welcome home" email and guaranteed booking 1 year out, especially during the busiest DVC season.