Lies, damned lies and mobile coverage
I live on the edge of one of those purple squares in the middle, i.e it's supposed to be somewhere between 3G and 4G.
In practice I have to go upstairs to get 2G at all.
Particularly annoyed today 'cos there's now (at work in an area that normally has good 3G) no mobile data from EE full stop...
OK, whinge over.