Despite seeing some very poor reviews, the deal on the iPhone 7 was very good so decided to give it a whirl. I didn't mess about with cash back offers and was also moving network provider. Got my PAC code from existing network, ordered my new phone at about 4pm on a Thursday. By that evening, I had confirmation of DPD delivery the following day and it duly arrived on time at 4pm. Can't fault the transition over to Vodafone. So far, everything has gone great. All my back up has transferred across fine too. I think the poor reviews are linked to cash back offers or people with poor credit.