What I like about the S4:
(+) Excellent battery life. I’m not on my phone all day. Particularly at work I do not frequently use my phone. I do however, increase my usage considerably in the afternoons, evening and weekends. I’ve been pleased that a single charge overnight will get me through my entire day.
(+) Google Now. As mentioned above this is really becoming the focal point of my experience on my phone.
(+) Camera. I stopped carrying my Nikon point-and-shoot camera and have been very happy with the pictures I’ve been snapping with out phones. Coupled with Dropbox(or another Cloud storage provider) we’ve got instant back-ups of our pictures and they’re already on our laptop, desktop and tablet when we get home.
(+) Call quality. My carrier provides the option to make and receive calls over 3G or WiFi(VoIP) and the call quality has been really very good.
(+) Ease of use. Connecting to Bluetooth devices, WiFi, wireless printers is a snap and very, very quick with the S4/Lollipop.
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What I dislike about the S4:
(-) Our 16Gb phones come loaded with Samsung apps that I really don’t intend on using. Out of our 16Gb, only 9Gb are open for use. Obviously the MicroSD card makes up for storage so this is relatively minor.
(-) Other thing that Disliked about this was that it gets heated up quite a times.Though it’s not a problem now since samsung updates have been gradually fixing it.