It depends on what information you want. For the average "guy off the street" I don't think Windy is the particularly easy to use. They just want to see:
- What the current temperature is
- What the predicted high and low temperature is
- Whether and when it is going to rain or snow today
Windy makes that somewhat hard to find. As I posted in a thread yesterday, you have to drill down a bit to find this.
However, for a weather enthusiast, Windy is quite easy to use to use. I find the interface fantastic for digging into what is going to be happening.
I realize there is supposed to be a popup in the upper left that shows a quick 3 day forecast, but I find it doesn't always display for me despite having that option checked. The Quick Forecast also only shows highs whether it will rain sometime that day. That is not quite enough information in my opinion. By clicking it you get the more detailed display, but that is probably more than most people want.
Not every site is going to be all things to all people. The Windy developers have obviously focused more on the "enthusiasts". That is a fine decision but I suspect it means that the bulk of the population will not choose Windy as their "go to " weather site.