There has been a VERY long discussion regarding Punta Perla on another website.
Singing Pig - PUNTA PERLA
Just in case the link above doesn't work, go to the website
http://www.singingpig.co.uk and look under Property investment - Overseas and you'll find 20 pages of discussion devoted to Punta Perla.
IF in case you are very interested in Punta Perla, I suggest to review each page thoroughly before you make a buying decision. It seems there are a lot of uncertainties.