[andy_m]

I can't speak for tesco, but I was on o2 before moving to Virgin, and that's the network tesco use. I have been very pleasantly surprised, and I'll be honest, I was nervous about it, because I found o2 to be excellent and I was a one2one customer years ago, and they were terrible. I haven't found any noticeable lack of phone signal, and the 3g connection is lightening on my Samsung gs2, even in doors, which I had been led to believe was a particular strong point of the o2 network. I left for financial reasons, I don't regret it.