We were last there June 21-26 in 1991. I understand that the place has changed hands recently and I don't know what has changed as a result. The elder Caldwells were not really very active due to age when we were there and I doubt if they are both still living.

I will do my best to give the a feel for the place as I doubt that it could have changed much since we were there. First, it is not Petite St. Vincent. For the same money you should give them serious consideration as an alternative.
Palm island is a very small flat island except for one hill to the side. It's major vegetation are palms planted by the elder Caldwell. You have a sense of peace and isolation with little to do but enjoy yourself and nature. You have a nice view of Union Island a short distance away and the sun sets are lovely as you watch the lights of the island come on. The water is mostly shallow around the island and there is very little in the way of good snorkeling due to the sandy bottom although you can find a few things to see if you spent time looking.
The accomodations are modest but comfortable. We did not have any room service at that time other than afternoon tea being delivered to our unit. All units are separted as I remember them. The dinning room is an covered open area that was served at individual tables. The food was ok as I remember it but not exceptional. This is not a Little Dix. We walked the complete circle of the island every morning. We sailed to Mayeau and Tobago cays one day. This was pleasant but the snorkeling at Tobago Cays was not very good. We did not spend any time at Union Island and it is doubtful that there is anything out of the ordinary there. Palm Island is a nice place to get away from everything and be alone. My wife and I enjoyed our stay there but we like peace and quiet and since we were off season there were only two or three others there at the time. Our rate for two at the time was $627.90 including service, tax and meals. If you are looking for something out of the way with few activities other that peace and quiet without anything exceptional, I don't think you will be disappointed.