Have you personally spent time with Blackberry OS? It was my daily driver for 4 years before it was forced off the AT&T network.
There's a level of sophistication with the QNX based Blackberry OS that Android or Apple has yet to match. The stock clock and calculator applications are still miles ahead in form and function. The built in conversion tool in the calculator app is still miles ahead in being a serious tool. The email app and texting app are sophisticated communications tools that have to be used to be appreciated.
Maybe the complaints about a dearth of 3rd party "apps" are well founded, but my wife and I didn't need any apps.
I still have my BB Q10 and fire it up once in a while and compare it to my wife's iPhone and current Android. There is no comparison and it's a shame you can't get a modern BB with BB OS and a physical keyboard.