So, I'm planning to get an unlocked 5s (I always get them unlocked) and get a SIM only plan. I've been with O2 for over 5 years now, on SIM only. But their 4G tariffs are too expensive compared to EE or Vodafone. I'm struggling to make a decision. You read lots of bad and good things about both carriers, so it's not a straight forward decision. I live in London and very rarely travel in the rest of the UK, so Vodafone lack of coverage is not a big deal for me. I've found very few reviews of Vodafone 4G service so far, I know it's only been a couple of weeks, but it would be great if anyone here has been using Vodafone 4G and what their thoughts are. Thanks in advance!