I live in the North East of Scotland and have had winter tyres on my cars for the last ~10 years. Some observations.
That said, I like them - very well suited to 99.99% of the British weather.
You do realise that 99.99% = 0.01% weather requiring winter tyres = about 1/3 of a day.
I didn't realise the weather in North East Scotland was so good.
I've told you a million times not to exaggerate!
In the past - we had Dunlop Ultragrip 7 on both cars. Not a good tyre at all - terrible in warm wet conditions. My wife has - for 6 years - had Continental TS850 as her winter tyre. Last winter we drove her car though the the Glens with untreated roads covered in snow and ice. The A3 - with 4 people - never spun or skidded going up and down some fairly steep hills. Those tyres are also good in warm conditions.
I live in the northern half of the UK. I would estimate there are usually 2-4 weeks every year when there is snow or ice on the roads (mostly ice). I work part-time and can avoiding going out in really poor weather. My wife does not have that luxury. I want to know that the 5-10% of the time she has to endure treacherous roads she has a tyre that won't let her down.
I see the Michelin Crossclimate 2 is due soon. I wonder will it have better snow and ice performance.