Customer service is good, signal is good, prices are good. The big fat No No is the fact your data is eaten up in days, even when data is switched off Tesco still manage to allow you to go into your safety buffer! Ive seen this same problem highlighted in a lot of reviews of Tesco mobile, so its not just me imagining things! Ive since changed networks and i have no more data usage problems! Id go as far as to say Tesco are ripping customers off with the data charges!