For me, it is - I love the fact that the News, Weather, Email, Calendar, Calculator, Timer&#x2F;Stopwatch, Cortana, Office Mobile (word&#x2F;excel&#x2F;onenote&#x2F;powerpoint), Skydrive apps on Windows Phone 10 are the same, with the same UI and funcionality that on my Windows 10 desktop. It works perfectly with touch and it works perfectly with mouse and keyboard.
Now I only download an app if it is UWP because it is so much more convenient.