Rxsaver has a rating of 3 stars from 1 review, indicating that most customers are generally dissatisfied with their purchases.
I have used this quite a bit, some places won't honor the price but alot do. It seems like pharmacies don't like the program. Definitely show them the codes before they ring it up or it will cause a mess having to redo the entire prescription entry all over again. Some places will give it to you at their cost if they can't sell it for a loss.