While I can't speak for Value Car rental, a friend who is on the island now had booked a REALLY cheap rate with someone. I am not sure who they bookled with but upon arrival the rate was "not available" and they had to scramble for another rental. They even had their email conformation but the company would not honor the quote. They were still able to get a decent price with another company but that is the last thing you want to deal with after arrival.

If it sounds too good to be true, it probably is not true!