Casa Panorama worked out quite well for us (two couples). We found the house to be well stocked with all necessities. We did have to pick up charcoal starter for the grill (grill is small but was ok). One of the best parts about the house is the front porch - we spent most of our time there! House was clean and comfortable. We were at first disappointed that the location/neighborhood was not published but it worked out great anyway. It is quiet and peaceful - but that is why we come to Vieques.
Some definite pluses were the washing machine, cooling breezes coming up the hillside, coolers/umbrellas/extra towels, outside hose, hammock, the view.