QUOTE(pianotuna @ Oct 12 2011, 04:18 PM)

Hi,
The problem is there are multiple cell phone companies. Note any coverage difficulties in the body of your review. What works for you may not work for me, as we are most likely on different cell phone systems.
Because we are possibly on different carriers for cell service, that is what the "blank" is for, the reviewer would insert Verizon, AT&T, or whoever. Which might be helpful if you are on the same service. But more importantly, RVers often go to some pretty remote places where no cell service is available at all regardless of carrier. I just believe more information is always better than less, and not everyone puts coverage information in the text of the review like you and I do.