Easy transfer, they have done exactly what would be expected and all has been good. Signal is much better for me on my commute than O2 had been and I can use my data at work which would regularly fail with O2 in particular at busy times - no issues on id / 3. We travelled from North East Wales to South West Scotland with my son watching videos on my data the whole way with just a couple of buffering issues lasting a couple of seconds each time - very impressed to be honest. Travelled around Dumfries & Galloway and detoured through the Lake District on the way home with very few blank spots for signal (the longest in the lakes had no signal on we either) Worked well in Crete also. Billing is good, the app is good - no issues so far.