Bluestacks and other emulators are NOT ideal nor are often acceptable alternatives to native apps. These Android apps running within the emulator are often isolated from the rest of the system.
As for Astoria (Windows Bridge for Android), Microsoft's framework for converting Android app source code to Windows code has never materialized beyond a proof of concept.
It is now being reported in various places that the project has stalled, having run into significant hurdles, and may actually be mothballed.
This is typical of Microsoft. Showcase proof-of-concepts (or even less tangible technologies) and play them up as part of their classic FUD machine. These are then used as "proof" for the future viability and future vibrancy of their offerings.
Remember Joe Belfiore demoing a Lumia that appeared to morph into a desktop running Windows? Turns out reality is going to fall far short of that demo.
When these things fall short of what was presented (or never appear at all) Microsoft isn't taken task for it, they're simply forgotten in the dustbin of tech history.
Yo Panay, I'm still waiting to see all of those custom blades you were talking about 2 years ago.