I personally love windows os mobile. At least the 8.1 denim update. I don't want to try windows 10 mobile.
Glance works well. You can customize all sorts of tiles for everything on your home page. It's actually quite fun and can be colorful, too. You can have transparent tiles, and the live tiles are useful. I've customized memo notes I put on home page. You can choose whatever color you want. You can change the size of your tiles.
I use a lumia 830 and it flies. Nokia optimized it very well, so don't be fooled by low specs on windows phones. On just 1gb ram, this phone is just as fast as my passport. Faster than my wife's iphone6s+. Miles beyond my junk android junk thing. I'm speaking from practical usage, not lab condition benchmark tests.
I think the app store has more of the useful apps that most people like than bbw which is comatose. I think most people on bb10 devices would abandon it were it not for cobalt and android apps. Windows apps store offers a free app every day from among the normally paid ones.
The bb10 hub system is still superior, and flow is more efficient overall with bb10, but w8.1 mobile is, for me, better than android. W8.1 could use better file management, but the user experience is good.
For business, i'd say the passport is more appropriate. But for general usage, windows phone has the overall better ecosystem and still receives support from microsoft.
Windows phones are cheap now. You can get almost any but the very top ones for under $100. The lumia 950 or XL is probably the best you can get now from microsoft, unless you wish to try the hp elite phone which is pricey, or the Alcatel phone that is very similar to dtek60 but on a different OS.
The Guide is definitive. Reality is frequently inaccurate.