My i5 reception/signal has been awful compared to the i4 I bad before. Same network (O2), same place of work, same home address and same activity patterns. Either the network suddenly went pants, or it's the iPhone 5. I rarely get a 3G signal unless in a city centre, and when I do get one the performance is usually poor. I've put up with this for over a year and can't wait to get my Note 4!