I have used it many times. I typically get the one that gives me 300mb (I think it's $60). The roaming partner here is Flow and I've had pretty decent coverage; even on Anegada. If you are anywhere with a line of sight to St. Thomas or St. John (CGB, JVD, Sopers, etc) you will also have normal AT&T service. From our property in Cane Garden Bay, I have full service just like in the U.S.