I moved from New York City a few years ago and have tried all the UK networks - vodafone, O2, Orange and Three. In terms of overall performance, three has been the best for me, followed by Vodafone, O2 and Orange. While very occasionally I don't get coverage with Three, most of the time I do and data speeds are fast and reliable. Vodafone seemed to have slightly better coverage in terms of voice signal, but I often only had EDGE and 3G speeds were generally slower than Three. O2 was fine for voice, but data speeds and coverage not great. Orange I don't even want to talk about.
It all depends on where you are and where you spend most of your time. For me, in and between Oxford and London with trips to Reading and Bristol, Three is by far the best. Not to mention their £15/month 300mins/3000texts/unlimited data and tethering is a great deal. Since data is unlimited, I often just use viber or VOIP and Skype instead of my minutes.
And no, I don't work for Three. Compared to New York AT&T Three is a dream! But compared to Three in Sweden, Three in the UK lags far behind in terms of speeds and coverage. It's all relative, but I'm quite satisfied with what I get for £15/month.
It all depends on where you are and where you spend most of your time. For me, in and between Oxford and London with trips to Reading and Bristol, Three is by far the best. Not to mention their £15/month 300mins/3000texts/unlimited data and tethering is a great deal. Since data is unlimited, I often just use viber or VOIP and Skype instead of my minutes.
And no, I don't work for Three. Compared to New York AT&T Three is a dream! But compared to Three in Sweden, Three in the UK lags far behind in terms of speeds and coverage. It's all relative, but I'm quite satisfied with what I get for £15/month.