Avoid at all costs! biggest waste of time ever, continuously declined by retailers. Cannot use if the quantity on the card is less than the value of the purchase. i.e. cannot supplement payment. Can only use to 50€ limit online. I was really annoyed at Supervalu earlier when the card was declined twice with no reason. The card value also devalues over time if not used. However, it is very difficult to use and seems to be setup so that it's impossible to use what is left on the card. We stopped purchasing these cards for family members due to the above issues, and I really hope our company shortly follows suit.
On a positive, they have a very good customer service department, and will do their best to help.