Like what I used with Matrix for USA - I was travelling to US for almost 2 months for a sports training and was really looking for cheaper options for phone. Atleast I didnt want to spend alot on my mobile bills. I happened to have used Matrix Sims earlier as well and was pretty satisfied with their services so decided to give it a shot this time again. Got a steal literally. For the entire 2 months, I landed up paying something close to 7500 rs and reaped benefits like free minutes of call back to inndia and also free 1 GB data per month. This was by far the most affordable service that I could have used while I was saving up every penny to take those coaching lessons:) Thanks Matrix!