Evert Fresh Green Bags Review

My mother in law is on a fixed income and bought the Evert Fresh Green Bagswith hopes of stretching her pennies by better preserving her fresh vegetables.  She uses the Evert Fresh Green Bags as the directions suggest, yet I often open her fridge to find wilted lettuce and damaged tomatoes.  She is trying to be positive about the results of the Evert Fresh Green Bags, but I believe her positive attitude is to mask her huge disappointment in this product. 

I myself had considered buying the Evert Fresh Green Bags but I now can not see wasting my money.  I have better results with my vegetables when I store them in air-tight Ziploc bags.  The intentions of the Evert Fresh Green Bags are commendable, however, there are cheaper alternatives.