Truthful answer to your question will vary greatly.
We have liked the idea of knowing we are guaranteed a nice place to spend our vacation. We have never traded for another location.
We don't like the uncontrollable maintenance fees that have reached levels of many non ts packages in sxm especially during high season. Airline travel is also tied to ts since sat or sun usually is higher.
Timeshare option in sxm has changed since you can now buy on line at great rates but know maintenance will remain.