I actually feel like I took a step backwards going from a Nexus to an S4. Two major beefs after three days of ownership: 1) None of the volume settings can be locked to each other like on the Nexus. I tried installing Volume Control+ but it seems to be very buggy and not working right. Why would Samsung make you adjust all of your volume settings individually when going from a loud environment to a quick environment. 2) The lowest notification volume setting is still too loud when I use a Zedge notification sound. My Homer Simpson "doh" is way too loud for use in the office. With the Nexus it was very subtle.