I bought one year back, it was working fine. It is just plug and pay but after rebooting my laptop, it started showing problems. It get disconnect suddenly even through there is strong 3G network in phone. I contacted the service centre in Gandhinagar but the guy was not responding or was not having the proper knowledge of hardware. However you should not go fot it in 2016 as there are other options at cheaper price available. If you have 3G smart phone than just recharge in ur sim and connect with your laptop through hotspot.