I've had many cell phones and this one is superior in every category. Quality and easy intuitive use is why I always show it off to friends and coworkers.
Started with mobile phones in 1986, so I have owned more then a couple. Six years ago, got my first Samsung and I have not looked back since. Things just keep getting better, my new S6 is not just great, but super great. My friends, that had gone to the dark side, have seen the light and now own Galaxy S6. They are happy campers.
Easy to work/understand, perfect size, great features! The battery doesn't last as long as my other phone but all in all this is a great phone with awesome features!