The only problem, at least here in Sweden, is the lack of fast chargers and the quality of those that exist. Most places have cheap to free 20KW chargers, 50KW are easy to find but 120KW and up requires you to travel a few kilometers or more and possibly stand in a queue.

Add to that the fact that those optimistic numbers are in perfect conditions, a preheated battery and the stars aligning perfectly in the sky that day- I rarely get even close to the advertised numbers.