GiffGaff – first impressions (a mini review)

I’ve been using a GiffGaff sim for a few days and I’ve tried it in a number of locations to see how coverage compares to Three.    I’ve tried the phone in a number of locations near home, at work 30 miles away and at various points between and the coverage between the two seems to be roughly comparable.  GiffGaff runs on the O2 network and Three use their own network for 3G calls and Orange for 2G fallback.  The GiffGaff sim seemed to be much quicker at flicking between 3g and 2g where signal is weak but otherwise there was little to choose between them and data speeds seemed roughly similar between the two on the apps I tested.