LivingDNA can't be said to do European DNA well, considering my Jewish heritage should be present.
Mine is difficult to measure, as my ancestry comes from too many different counties due to the immigration and internal movement. My mother's ancestry is mainly Welsh and English - South Wales and the Borders, Gloucestershire, Staffordshire and our random winner, Durham (which LivingDNA puts with Northumbria).
So her totals went from 95.1% GB & I to 100% GB & I. Her South Wales Border total went from 40% to 51.5%; South Central England (including Gloucestershire) from 9.4% to 12.6%; North Wales went from 6.6% to 9.6%; South Wales from 9.4% to 7.2%; Cumbria (2.5%) and Northumbria (1.9%) both went to 3%. I'm not sure about the edition of East Anglia, South Yorkshire, North Yorkshire (although vaguely explainable), Central England and Northwest England. Her original results also included Lincolnshire, Ireland and the Iberian Peninsula (which have all since been removed). - In comparison, Ancestry gives 87% England, Wales & Northwestern England with foci on Mid Wales and the Midlands, and 13% Ireland and Scotland.
My possible home counties from my father's side (beyond the European Jewish) includes Lincolnshire, Yorkshire, Hampshire, Lincolnshire, Sussex (plus more) and the Scottish side has Ulster Scottish and probably Lanarkshire.
My original results included: North Italy, Aegean, Scandinavia, France, Finland and Western Russia and Kurdish... (all of them, other than the "Aegean" have vanished and my Great Britain and Ireland results went from 79.3% to 90.1%.
My results have completely changed - they now are: South Wales Border 20% (originally 5.1%); Cumbria 12.2% (originally 3.6%); Northumbria 9.2% (originally 9.8%); South Central England 7.9% (originally 12.3%); Devon 7% (16.7%); East Anglia 6.9% (3.6%); South Wales 6.5% (5.6%); Aberdeenshire 6.2% (2%); Lincolnshire 5.2% (not present); South England 3.1% (3.2%); North Yorkshire 2.2% (10%); North Wales 2.1% (3.6%); Northwest England 1.5% (not present).
Counties that were present in the first reading and not the second included: Orkney & The Shetland Islands and Northwest Scotland.
*My AncestryDNA is 82% England, Wales & Northwestern Europe, with a focus on the Midlands; 10% Ireland & Scotland with a focus on Northern Ireland and Southwest Scotland; and 8% European Jewish.