I have personally use this software and its the best as it turns your pc in android phone.
Firstly when I dont have an smartphone and then I want to get connected with friends through whatsapp then I searched whatsapp for p.c then I came to know about bluestacks software and ijust installed in my p.c and through bluestacks I downloaded whatsapp and through my old phone I imported all the contacts and messaged all the all my friends that I m using whatsapp.
Not only this but also I downloaded andriod games, myntra which does not come online and all the useful androids which helped alots. thus from then I started using whatsapp, playing games through bluestacks. I recommend to have this software in your p.c if dont have a smartphone as its the best.