The wife and I have been to 4 TrendWest presentations at their Vancouver, WA location.
Each time we sit through a 90 minute presentation, then they REALLY try to hard sell you, say no about 1000000 times then you walk out with a free vacation (air/hotel included).
I would have considered getting one but $8,000 for a 2 week timeshare PLUS you have to pay maintenance fees is BS.