I did the same switched from the iphone 4 to the galaxy S4. I used to be a huge apple fan. They were always more expensive but worth it. After Steve Jobs died they went the way of microsoft and the new releases they forced you to download breaks outdated un-supported devices forcing you to buy new. I Downloaded the latest OS and all of a sudden my iphone 4 doesn't work.
I really like the Galaxy. The screen size is perfect not to big not to small, the camera is awesome. Its just creepy how much it already new about me just by putting in my gmail ID. It was downloading pics old contacts of people I haven't spoke to in ages and it new how far I was from my office and home. Love the phone but the info storage is a little creepy.