I bought 3 sets - one for me and two for gifts. I attempted to use them as directed. Washed, dried, dried vegetables, put paper towel in, wiped out moisture daily, put in new paper towel, etc. Lettuce went bad in 2 days, mushrooms in 2 days, etc. The radishes did okay but I think they'd do okay in anything.
Needless to say, all the sets are going back and I've learned a valuable lesson - stick with Tupperware.