[Galaxy Note 3 General] MohJee:
Disclaimer: This thread is just meant to help note 3 future buyers. All things listed are just minor inconveniences. The note3 is the best electronic device I've ever used to date. I think it's the best phone to date. The below pertain to the Qualcomm Snapdragon 800 model of the Note3; users of the Exynos model may have different results:

The good things about the phone are

many

. This part is not meant to list them, because you probably already know them.

Having said that, here are the things I've noticed so far (My phone is Qualcomm Snapdragon model with 32gb):

The phone gets somewhat warm at the back (above the samsung logo and below camera) during some usage. [Update: Temperature has been improved in my second day with the phone. It still gets a 5-7 degrees warmer while using the camera or intensive browsing, but nothing to worry about imo]

The home button is not firm in its place. It moves in its socket (much prone than it was on the note2)

The volume rocker on the left of the phone is placed higher than on the note2 (whether this is good or bad is up to you).

***UPDATE***

There is a noticeable and ugly pop sound followed by a static noise whenever the audio stops while using the AUX port in my car. When the audio starts again, the sound disappears completely. When audio stops or gets paused, it's fine for 3 seconds and then the pop sound hits again followed by the static noise. [I'll have to test this using another aux cable before confirming on this one though so don't quote me. The aux cable I'm using is one year old, $12 from radio shack]

There is an ever so slight gap between the frame and the glass on the top and bottom (the gap is a bit bigger at the bottom than on the top) which accumulates dust particles. The sides don't have any noticable gaps, at least in my phone. To be honest though, the issue is much less noticeable than it was on my note 2 (my note 2 had gaps on both sides as well as top and bottom), and you can't see it unless you deliberately look for it.

Charger is now much harder to both plug in and plug out of the phone (thanks riz157). This is actually an advantage for me since Note2's usb wire that came with the note2 would get detached very easily from the slightest of movement. However, one disadvantage of the new wire comes in the form that it is now more difficult to plug-in in the dark; the hole is a much tighter fit now.

The S-pen is not flush with the back cover like it was with the note2. It is now protruding by like 1millimeter. This is just a silly point, but I decided to throw it in. It is also somewhat harder to get out (thanks ipkryss for pointing this out), but it is easier to put back in (you can now put it back in in two different ways, as opposed to note2 which accepted only one way). The pen itself is thinner, looks more premium, and feels better in the hands than before.

***UPDATE***

Unfortunately, updating the Youtube app to the new version seems to break the functionality of the Scrapbooker feature that enables you to save Youtube videos in your Scrapbook.

You'll have to go to Youtube's application info and click "Uninstall updates" to revert back to the Youtube's old version if you want it to work.

It's one of the most interesting features for me when it comes to Scrapbook, so I hope they make it compatible with the new Youtube soon.

*** There seems to be a glitch where my phone would start only utilizing CPU1,CPU2 and CPU3&4 would remain "offline" no matter what you throw on the phone. This has happened a total of three times on my phone and was fixed with a simple reboot on all three occassions (Had the phone since 5 days now).

To put things into perspective, my Quadrant score on this phone is around ~22,000. When the glitch was triggered, Quadrant score was ~13,400 (which is still higher than the second highest score that belong to HTC One)

I can't replicate the issue because I haven't the faintest clue what triggers it. Not to alarm people, this might only exclusive to the ROM in my phone, as I haven't seen anyone else report it yet, and it seems to be a rare occurrence. If more users of the S800 model can chime in and track this on their phones (for a period of at least 2-3 days) I'd appreciate it. If it does turn out to be an issue with all S800 models and not just specific to my ROM, notifying Samsung should get it easily fixed with an update.

USB 3.0 Vs. USB 2.0:

Using a stopwatch, I set out to calculate the transfer duration of a 5.64GB from my PC to the internal memory of the phone:

First test: using USB 2.0 cable (Media device MTP connection), USB 2.0 port on my PC, File size 5.64GB.

TRANSFER DURATION: 00:03:15 (195 seconds)

Second test: using USB 3.0 cable that came with the phone (Media Device USB 3.0 connection), USB 3.0 port on my PC, File Size 5.64GB (exact same file to the exact same location on phone) [Warning: using USB 3.0 might interfere with data connection&calls]

TRANSFER DURATION: 00:01:37 (97 seconds)

BATTERY STATS:

So I bought phone yesterday evening. Charged it overnight. It was 100% when I woke up at 6:25am to get ready for work.

Enabled data (3g HSPA though, not 4g). Data was enabled for the whole day. The phone was on wifi for only 5-10minutes in the morning--ignore the bar in the second screenshot which shows that WIFI was on for the whole time. That may be a software bug.

The brightness was on Auto and on the middle of the Automatic brightness adjustment bar for the whole duration.

Phone Usage Included:

Chatting on whatsapp

Using XDA forum app

Reading some tech news using Appy Geek app

Installing around 20 apps from the Google Play Store

Listening to music to and from work through AUX port in car

Fiddling around with the phone from time to time --testing Air command, browser .. stuff like that

By around 10pm, the battery was around 33%. I began running YouTube videos on HQ, with max volume, and on 3g for a total of around two hours.

Finally, the battery dropped down to 7%.

* Disclaimer: The usage did not include extremely battery-hungry tasks, such as playing games or running benchmarks. GPS and Bluetooth were off. Air gestures and such 'gimmicky' features were off, as I don't really use them. Note that your Note3 battery life might/will differ depending on usage and whether you're on WIFI or 4g.

*** Charging Speed (using AC adapter): Around 47 - 48% / hour. I plugged my phone when it was 5% at 12:36 am, by 1:36 am it was up to 53%. ***

And below are the results:

Verdict: the battery life is fantastic. Enough said. If my usage didn't include running Youtube videos, then the screen-on time would have probably been more than 7 hours. Note that this is on the first charge cycle of the battery. To make it short, it will easily last you a full day if you're a heavy user, and more than a day if you're a light user. Keep in mind that screenshots were taken when battery was 7%, so it still had some "juice" in it left

OFF-TOPIC: I know I said I wouldn't mention the good parts of the phone, but I have to say that the display on this phone is lovely and to me a worthy upgrade to the Note2's. The blacks are BLACK. So much so, that if you open a completely black screen on the phone, and go in a pitch dark room, the phone will be completely invisible because it blends perfectly with the dark. As a point of comparison, my Note2 looked greyesh in a completely dark room.

The whites are improved as well over the Note2, they now look more "milky" if that makes sense.