My employer provided me with a Galaxy S4 until February and I never cared for it because Touchwiz always felt relatively sluggish and the dialer was agitating to use. I also didn't care for the build of the S4 or the way it felt in my hand. The S6 (and the Edge in particular) are on my shortlist as I look to upgrade my personal iPhone 5 and move away from the Apple ecosystem. Just wondering if anyone has any real experience going from S4 to S6 and would care to comment on improvements/differences.