It seems that I am one of the few here who prefers to stay on topic.
As an owner of two rental villas on the island, I have had many dealings with both WIMCO and Sibarth over the last 10 years. From what I know, the companies were never formally connected, but rather chose to work together in a productive, symbiotic relationship. Why did they part? To put it simply, as the principals aged, their goals diverged.
So, last December, WIMCO opened its own office on the island - a nicely-located spot right across from the airport - to handle its own incoming clients and owners.
As an owner, I like to work with WIMCO. They're highly professional, easy to work with, and have an incredible stream of quality clients for my villas. Over the last 10 years, 94% of my clients have been Americans booked through Wimco, so it makes sense to stay with them. I think that the most impressive part of their organisation is their familiarity with the villas. They send all of their agents to island frequently to look at every villa. They know their product as well as anyone and, thus, can make excellent choices for their clients' varying preferences.
Now, with their own office and team on the island. "what's not to like?"
That's my opinion. "Your mileage may vary."
~ Jean d'Arme ~