I have been using this card for several years. I frequently travel internationally and need short-term access to international roaming, which my old cell provider did not offer and my new one charges a monthly fee for. I put this in my phone when I am out of the country and it has been very useful. When I expect high use or an extended stay I buy a separate sim card from a local provider in the country, but for occasional use I use this. The per-minute usage charges are very high, but if you consider the cost of a sim card for each country, this plan is still a good idea for low use. I have also used it for backup when my pre-paid sim card unexpectedly ran out of funds on my last trip ($%^ kids!).