One of the posters mentioned difficulty booking with "floating weeks". Since floating weeks are tied to the resort where they can be used, historically, Wyndham/Fairfield floating weeks are fairly easy to book.
If you try to get into a high demand resort using POINTS, you may have considerable difficulty. Realize that the Wyndham/Fairfield Points "Pool" is partially filled with good weeks at great resorts. But it also has its fair share (no pun intended - still cute) of "dog" weeks. After they sell the best at a resort, those off season weeks with a great view of the garbage dumpsters, go into the points pool.
So when on vacation at a top resort the person buying a points contract doesn't get told directly that some of the underlying weeks in the 'pool" are pure garbage.
So this further drives the need to book way in advance to get prime stuff. With a floating week at a resort, at least you are guaranteed that resort. With points at a particular resort, you are only guaranteed your resort if you book more than 10 months out.
If you are good at working the system and can plan way in advance, points are fine. Otherwise, they will lead to disappointment IMHO.