I would check which hotel and confirm with them the offer There are too many scams out there. Instead you pick a hotel of choice, go to the web site, and they have specials that tie into airline partners
No. I already OWN timeshares - which is the objective of this trip you are being offered - and I got mine with my eyes open, and contacting the company myself, not one of these *deals*. If you take this offer, be prepared to be held hostage in a sales meeting with a high-pressure sleazy salesperson. Do NOT do this.
No. There's usually a catch to those deals. I'd rather arrange my own trip that gives me exactly what I want.