Can anyone tell me what the exchange privileges are between the Iberostar Paraiso resorts? I realize that the Grand has privileges w/all the others, but how do the others work? We have stayed at Iberostar resorts in Punta Cana and in Playacar, so I'm familiar with how the resorts tend to be situated in pairs, and share pools, restaurants, etc. Also, I saw a reference to a 'shopping center' within the Iberostar complex - can anyone tell me what types of shops are there? Is it basically a glorified gift shop, or....? One more thing! Is there a shuttle to Playa Del Carmen (5th Ave area) or is the only option to take a taxi? Thanks for any info anyone can provide!!