If it's the same as Green Dot MoneyPak it's a joke. Good luck finding a CS number if you have any issues, which you will. I got one of those prepaid cards to collect payouts from an unnamed book, soon as I went over $500 in a week they banned me from putting MoneyPak on my card and using MoneyPak altogether.
Now the sending side, simple to send money, but there's really no recipt or confirmation at all that the party you're sending to receives it. Other than their word....and if you ever lose your card or code gets into the wrong hands, anyone can steal your funds, within seconds.
If there's ever any issue in receiving a Monepak payout, and they need to issue you a refund, you will wait at least 2 weeks to get it.
Biggest issue is finding a CS number where you can talk to a live person.