I was using this phone before my current Iphone5s,
Experience was good, when I was looking to buy the phone I was really confuse which samsung phone to buy, I called my friend, whos uncle is in Samsung & they told me buy Samsung s3, which is the best production of samsung all other phones are just copied from this. So, I bought Samsung s3 & I was really happy while using it. Camera quality is really good. Internal memory is 16 gb which is enough & I have added 16 gb card as well, which was more than enough.
But after adding so many apps, this phones starts hanging, which every samsung phone start doing after sometime & thats the main point I switched to iphone 5s & now most of the samsung user are moving to iphone just because of this.
I hope samusung will look into this issue.