I'm from the USA. I love so many things about Windy, but the single feature most important to me is seeing real time lightning strikes. This helps keep both me and our horses safe by warning us when to get them into the barn before the lightning arrives. Will there be rain without lightning, so I can leave them happily out with their grass? Is there lightning coming, but can we let the ponies graze for another hour before turning them in? Do I have to move NOW to get us all safely out of the pastures? Indispensable.
When I showed Windy to one of my (human, not equine) barn buddies, she told me the next day that she had spent the whole evening exploring its features.