I have unfortunately opened up a 2 year contract with Vodafone as they had a good deal for data. However the signal is so shocking I can never use any of that data anyway! When i checked the map it showed my area would have 4G coverage yet at home i get gprs and no phone signal most of the time. I travel for work and most places the signal or 4g coverage is pathetic. I was with three before and they were super fast with no issues! now i am stuck with a contract... I now understand why they could offer far more data per month than other packages, the coverage and signal is so terrible you can never really use much data anyway!