So we have rented from Davids several times. There are certainly ups and downs. If you are looking to rent a suite, it is absolutely worth it. If you like to stay in the deluxe accommodations, also worth it. It's a wash if you're comparing moderate resorts to the DVC rooms, and definitely not worth it if you are comparing the value hotels. For us, we like the deluxe rooms, and the benefit of having a one bedroom suite. For a week long stay its worth it for us. Davids has great customer service and they are really responsive to inquiries. However there are several downsides:
-you're subject to what they have on hand. Good luck trying to secure a one bedroom at Grand Floridian in the high seasons. If you don't book eleven months in advance you might not find what you want. You might not find what you want anyway. We've had a couple trips where our first choice was not available.
-you pay it upfront. So you need cash (or credit, yikes) on hand
-unless you have travel insurance, if something comes up and you have to cancel, you are out of luck with getting your money back.
-we just ran into this unexpected issue. We are AP holders, and I wanted to try to take advantage of the free Memory Maker deal during our trip. Because we booked through someone else's DVC, it can't be done. Bummer. Be mindful of possibly loosing out on other deals offered through Disney.
-you need to put a $99 down payment to submit your request. They are great about refunding it if they can't give you what you want, but it's a nerve-racking thing to do.
For us it works:
-great deal on a room that I would otherwise not get even with Disney's discounts.
-option to add dining (even though we don't. We don't eat enough to justify it) and Magic Express
-for advance planners you get some planning done early (sometimes super early) - love those check boxes!
But I highly suggest doing the math. Know exactly where you want to stay. If you're not picky, and you don't mind a moderate or a value, it's probably not a great deal. If you're a deluxe snob, such as yours truly, it absolutely will be worth it. Esp compared to rack rates (though most times you can apply some "discount".)