Aruba. Divi phoenix or playa linda

Hello

I'm a new member to this forum. My wife and i are interested in buying a timeshare in aruba and have things narrowed down to the playa linda or divi phoenix. I'd be curious to hear any insights from current owners

Also I'm still confused how the exchange privileges, rci points and interval international work. Do a lot of owners take advantage?

Thanks for any info

Tony