Vodafone, on its site is providing users to access the network coverage in their circle. Just choose your circle and the map with areas having network coverage can be accessed quickly. If you doubt the information and are facing network problems, then Vodafone has also provided users with an online form, which would allow you to complain about the areas you are facing problems in, so that the same can be corrected.
The move seems to be taking Vodafone closer to its customers and thus trying to bring loyalty and superior customer service into play. Such moves prove to be favorable to the customers as they are aped by competitors, thus leading to superior customer service in the market and higher quality standards.