I have an iPhone 5s and recently got the Nexus 5. I have AT&T so it makes it easy to just switch the sim between devices with an adapter. I am deeply tied into the Apple eco system, with multiple Mac's, iPads, etc. All my family and friends are also all Apple people. So far I am really liking the Nexus 5. I love the screen size and it is such a smooth phone. I haven't had any problems in my first week. The battery life is always what scares me away from Android, but amazingly so far the battery life is better then I was getting with my 5s, so I am happy. I would say the biggest thing I miss so far from the iOS side is iMessage. It has been hard to give that up! I have been missing a lot of texts because people are still trying to use iMessage. I have tried to make sure iMessage is deactivated on all devices and unregistered my iPhone, but I know I am still missing texts..hopefully that problem will go away soon. I plan on keeping my iPhone for awhile to make sure I don't miss it to much.