Ok, hoping that this is a legit gripe thread, here are my main concerns (please bear with me as I am new to android after being with blackberry since 2005):
1) The battery life is terrible on this phone. Currently have to charge the phone as may times as my 9900 (2x/day). I've installed juice defender & have all the power saving options turned on. I did notice my cell standby takes up A LOT of my battery
How is your signal during the day? Do you have WiFi, GPS, and Data turned on? If 3G, 4G, Wifi, or GPS are on with a weak or non-existant signal, it will eat battery by constantly looking for the signals. My old Captivate would last 24 hours if sitting near a wifi router, but if I'd wander to an area with poor cell coverage and no Wifi, I'd be lucky to get 5 hours with minimal usage. I can't say for sure it's the same with the SGS III, but it sure made a difference on my last phone. If you're inside and not near wifi during the day, try turning off wifi and GPS and see if that makes any difference.
2) The led notifications are spotty at best. Sometimes I'll get a blinking led notification when a message comes through or it'll be a solid light or it won't light up at all. I've missed more than a few messages (emails, whatsapp messages) because of this. I really miss my blackberry when it comes to notifications
They are wacky, aren't they? I haven't figured out all the colors yet (except red for charging and green for charged). Samsung really needs to provide an app so we can control this light.