SW vacations - 3rd night free ?

[ajpa]

Just saw this on the SW vacations website and I'm curious if anyone has ever tried booking with them
http://www.southwestvacations.com/Deals/Deal.aspx?deal=575

Every 3rd Night FREE at Walt Disney World® Resort Hotels! Plus, up to $125 Instant Savings!

Plus, Receive up to $125 in Instant Savings!
Book a flight + hotel package at select Walt Disney World® Resort Hotels, and receive every 3rd night FREE! Plus, receive instant savings of up to $125 per reservation ($25 per night) at any Walt Disney World® Resort Hotel when using promotion code DISNEY125 at time of booking.

In addition, save up to $120 per person, roundtrip because Bags Fly FREE† with Southwest Airlines Vacations. Even golf bags fly FREE!

Book: 6/1/12 - 6/14/12 by 6:00 p.m. CT
Travel: 6/2/12 - 9/29/12
One-day advance purchase is required.
3rd Night FREE only applies to "DEAL" room categories.

It's too late for us to use but I'm wondering if I should keep them in mind for future vacations.