Android Studio is a totaly free Android development Software, its implementation editor is very useful for Android developers. Android studio provides shortcuts for coding and designing, its layout designer makes it very easy to use it reduces my time for coding. Android studio provides drag and drop feature to design the layout of our projects. Today mostly all business need their own Android Applications which can be developed easily with the help of Android studio.
While downloading Android studio it if you use old AMD CPU,s then it may be very slow to download and you cannot use it until full download.
Android Studio is very powerful software for App development, if you want to use it then I suggest you to use fast processors like i3, i5 etc. to work this software effectively.
I am using it for App developments