In some areas of the city their service is really good but in other areas their service is worst. The speed is nearly 10-100kbps. This is not a 4g speed. It is a 2g speed. But in some areas the speed is around 1 mbps. The place where I live I am not getting much speed. In my area it is even worst than 2g. So, I think their towers are less in comparison of their users. During its 1st phase the service was really good but now it is very bad. They have the largest number of customers so their service should also be the best. Talking about charges, they have really affordable rates of packs for their customers, which is very good. Calling is also nice. But I have issues only with the Internet speed.