Browsing all of this makes me even more glad I was able to resell my Kauai TS(shortly before the 2008 stock market crash). For me, I'd been sold a bill of goods by the sales mgr there and didn't know enough of what I was doing to figure it out at the time(my fault).
Just highlights to me how often these deals are not so good, as one never knows how things are gonna change(such as 'extra' assessments for building repairs, higher taxes, etc., etc., etc.).
I'll take my chances with either conventional reservations or TS rentals; not much downside there, just a known $cost$ up front.
While TS are ok for some, I sure wouldn't recommend it for most. Most surprising to me(dumb, I know) was how Marriott turned out to be just one more corporation out for max $$$. BUT, I'm OUT and I learned my lesson on that one