To be fair I've probably only done 6000 miles over those five years but I've driven in quite varied conditions including light snow and they did the job. I previously had them in 16" on an R50 Mini and they worked fine in deeper snow as well, just bear in mind that for snow use they are only good with a tread depth of 4mm or more.
At the start of April this year I swapped to new MPSS in wider 19" sizes and then we had a few colder days and I was surprised at how little traction they had. It might have been because the MPSS were too new but in cold, damp, dreary weather throughout the winter I got used to the level of confidence that the Hankooks gave me. You can even have a spirited drive and accelerate and brake as if it was a dry sunny day if you wanted to. Cornering is fun and predictable but not the same as a stiffer quality summer tyre which I felt was a fair trade off.