BlueStacks is a good Android Emulator for Windows where you can run Android software and games on laptop or PC. Installing Android Emulator is very hard and pain, you should have a good Internet connection and you should run the installer for about 1 hour to install the BlueStacks application. BlueStacks application download some additional files from Internet and it will take a lot of time to install the software.
Even if you download the offline installer of BlueStacks. it will again download some files from Internet and install in your computer. There is a lot of requirements for BlueStacks to work. More RAM memory and more CPU power and fast Internet connection.
You cannot Run all the software and games that you run on Android phone. Because some applications require accelerometer and mic and other sensors to function properly. BlueStacks does not have your inbuilt file manager so if you have download from play store and find a good file manager and then only you can handle the files in the internal storage of the BlueStacks.
So overall BlueStacks is a good application to emulate Android games and software. It is mainly very useful for Android developers. The Internal connection between BlueStacks and Windows is nice, so you can easily transfer files between BlueStacks internal storage and Windows. There is a common shared directory for Windows and BlueStacks application.