I have three Windows phones, a Lumia 640, 830 and 950 dual sim. The 640 is still on 8.1 and no longer used; the 830 is on Windows 10 insider slow ring while the 950 was until this weekend my main phone. The 950 is far better than most, if not all, of the Android/IOS camp realise and, with the dual sim version, you can have two sims AND a microSD card. Then there's the removable battery (and Windows phones don't, to my knowledge, spontaneously ignite...).
But I thought I'd give Android another go, so when my local service provider managed to get dual sim Note 8s, I took the plunge, and just under £700 over two years interest free isn't too painful for me. I used to have a Note 2 back in the day, until I jumped to Windows, so we will see how the new beast fares. There are also some apps I am likely to need for work.
But (and this is a big but) I am not totally abandoning Windows phones. The 950 will also continue in use as a second phone, and if the Andromeda device materialises I shall definitely get that.