I just picked up a 32 GB from ATT today. This is my first Android phone, although I am familiar with Android via a Nexus 7.
I've only had it a few hours. My initial impressions...
Pros;
-The Screen is great. Both in terms of size and the display itself, it's a beautiful display,
-The Camera is nicer than I expected. Not as nice as my Lumia 920 (not even close) but very, very great for a phone camera and exceeding my expectations.
-IT'S SO LIGHT. I really am not one to care about how thick or heavy a phone is. I think the 920 is great, where as a lot of people complained about it's size and weight. But the S4 is amazingly lightweight, it's pretty impressive.
-LED light. My god... I haven't had an LEF notification light since my blackberry days, say 2005, and I really did miss it. I know it's not for everyone, and to be honest I had forgotten the Galaxy's even had it. But now that I have one again I am very glad.
-Touchwiz is not as bad as I would have thought. I hear a lot of complaints about it, especially on here, but so far I don't see what the fuss is.
-So far I think a lot of the gimmicky features are actually pretty cool! I know I'll never use them all, but some of them are great and will be used often.
Cons; (I am extremely open minded, as I just bought the device, so these will likely change over time)
-Build quality is well below what I expected. Especially for the price. When I go to remove the battery cover I feel like the Incredible Hulk petting a kitten. Disaster imminent.
-Lag... Yes I am noticing lag. Compared to iOS and WP8, so far this is the most lag I have experienced on a modern phone- but it's really not that bad, and nowhere near as dramatic as some of the reviews I've read. Still, for a $250 on contract price, I am a little disappointed there is any lag at all.
-NFC for payments... I know this isn't really the phone's fault, but I think it would be cool if I could use the phone at vending machines and stuff and as of right now I can't (I believe this is an ATT thing)
I plan to keep this phone for the duration, at least until the Note 3 or iPhone 5S, or maybe even beyond depending on how those two look this year.
Cool phone, so far I am pretty smitten and I am having fun getting everything set up. I love having serious access to all my Google services, I've been a Gmail user since beta and use Talk, Music, and most of their other services daily.
EDIT- Does the S4 give you more storage when you sign in to dropbox? I know the S3 gave 50 GB or so, and I heard the S4 might but I don't seem to have gotten it.
