Thanks. I wonder the if you can use this on any available inventory or it is subject to the same opacity as the weeks program. In other words, if I deposit say an independent unit with a high TDI and get the listed points, can I be able to pick up a two bedroom Marriott in the same TDI range? The guide says points allocated is also the same as points required for redemption.
Nothing is above opacity in II

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Bearing in mind that there are nuances to all points systems that operate in II, there are pros and cons to points vs weeks in general terms
- You will (should) see all eligible inventory when searching, it will just be the number of points needed that varies. It will include and exclude any preferences that the membership is or isn't entitled to see.
- You don't (except one system that I can't recall the name of) get any discount on number of points needed during flexchange
- You don't get the ability to pay a fee for unit size upgrade. Not sure if there are exceptions to this.
- If you retrade from your initial exchange to a week that requires fewer points, you don't get the difference between the points you initially used and the new requirement back, but you can still retrade again back up to the higher points level.
- Some systems do and some don't allow any additional points needed for a retrade to be added
If you buy a week at a resort that then converts that week to points to be used in II, per the Harbour Ridge example, then you're just into the same usual process of working out what points yield you get for the up front cost and maint fees and what you can get with those points so you can compare with Sheraton Flex, Hyatt and Welk etc Just the same as you compare weeks traders and the benefits of lock-offs etc.
Points systems work quite well where people have needed high season larger units and then want to trade down to smaller units or lower season, they can get 3 weeks in II for the price of 1 week's maint fees.
What you can get with the various vacation club points models is you pay an up front fee for a set amount of points over a set time, and then no enduring maint fees, but there may be "usage" fees for "depositing" to II. Then you're into the analysis of the time value of the up-front payment vs usage risk over time. Really roughly most of the Mexico schemes that I've read about come out around $600/week for an elite studio, and they generate much better value when used within their home resort system.
Per the Harbour Ridge example, some independents do offer "bonus" weeks that can be purchased for deposit to II, which can be a good low cost additional use, whether deposited as weeks or points.