I had wonderful experience using the services offered by Clay Telecom. I had purchased a postpaid international SIM card(Voice+ Data) for my trip to US. The network coverage was good as I did not face any issue in calling connectivity.
Even the data worked very well throughout my visit because of which there was no issue in chatting, emailing and uploading pics on the social sites.
I had to follow some dialing instructions before making calls, which was little boring. Otherwise the overall service offered by the company was money worth and inconvenience free.