Pros My favs are the Amazing customization!!!, widgets, screen size, several keyboard options, live wallpapers, light weight, direct call, dedicated back button and the multifunctional home screen button.
Cons I wish the battery lasted longer
Summary I researched this phone for at least a month because I was nervous about giving up my iPhone 4S. After watching YouTubes and convincing myself to try something other than Apple products, I purchased the phone figuring that if I didn't like it, I still had my iPad to fall back on. I have to say that this phone is the best! I love the freedom of customizing the phone and adding widgets to the home screen. I didn't realize how limited I was with my iPhones so all of these android features, like being able block numbers, live wallpapers, widgets, etc, are new to me. I still think the iPhone is a quality product, but this phone is much more fun. It's easy... I don't have to have an app for everything. Some things are just THERE on the home screen and I don't have to go into layers of apps to turn on WiFi or Bluetooth or anything else. Also, I thought the phone would be too big and awkward looking but it's actually very comfortable. The odd part is just last month I was making fun of my friend for having a phone this size. I never thought that I would even like a phone this big.
If you're like me and became a little bored with your iphone, I think that the SGS3 is worth a try.