My family did the DVC tour this past December, not really knowing what it was. Once we figured out it was a timeshare, we weren't interested. However, the sales people were really touting the new villas at Poly, especially the new split bathrooms they have. I'd imagine that because of location and their refreshed interior that they may be hard to get. Coincidently, we also learned during the sales pitch about DVC rental agents.
So, We tried the DVC Rental Store, mainly because they will check availability for your dates without a deposit. But once they determine there is availability, we put down $100, and they went to work for our first choice, which was 6 nights at WL Boulder Ridge for Christmas. It took two weeks to match our points request with a DVC member, and linking the DVC confirmation to our My Disney Experience was a breeze.
We did ours right at the 11 month mark because our available travel dates are always fixed to just the same few weeks each year, due to my wife and my careers. You pay a little bit of a premium for reserving that far in advance, but it was worth it to secure what we want, and it's still 50% off rack rate for a standard WL room for the same dates!