I was all prepared to comment on this one and then read what Todd_Melinda_K had to say and they pretty much summed it up. On #1, the only question I have is what time of year are you going? We usually go in June and there is much more space in the off-season.
#4, we like the Lolos at Grand Case
And when Todd said -'Remember c/o is clothing optional', that pretty much says it all. Some good advice we got many years ago... nobody knows you and nobody cares. ohh, and sand gravity is real!