I keep trying Bluestacks and while it is getting better I find it is indeed a Beta product.
While I only have a few apps that I really care about on my Nexus 5 phone, they are not in the MS apps store.
Hmmm - maybe I better check again.
When I got my SP1 it took me about two months to feel comfortable about even thinking about making it my main computer.
But I made the switch and I would never go back.
I bought a 256 GB SP2 because I needed the increased disk space for mapping and photo apps.
Being an ancient dude I use...
Windows 8.1 includes the free MS antivirus Windows Defender. If you add another AV, Defender automatically disables itself.
I recommend adding MBAM Pro ($24.95) regardless of which AV you have.