With my prior experience of paying heavy bills during my international travels, i was looking for a cheaper solution and as luck would have it i happened to hear this Matrix Sim card ad on radio and with their offers, there was no second thoughts about using their services. Since i was travelling to UK paying an overall 30 pounds for 25 days made more sense than anything else. Other than getting this really good deal, when i used their services in London, i was pretty happy. Good network, good data speed.  I think having used their service for the first time, my experience iwth them was good. Made total sense to spend that 30 pounds, it was way cheaper than any of my previous bills.