I got mine yesterday. I've been enjoying it. When you're using it heavily, the battery can drain faster than you might think. I dumped 20% of my battery in an hour last night while installing apps over wifi, configuring settings, trying out apps. trying out a movie and just getting to know it and finish the setup. BUt today, in medium use out and about, only a few short calls, 15% battery over 7 hours.
The screen is quite nice. good brightness. Setting it to Movie helps with the color. I've not noticed the white level to be pink, green or blue as is sometimes commented for AMOLED, but I've not had it side by side with other options for comparison.
It's been very fast, nothing lagging yet. At home, the reception is poor. I knew it would be and its true of Verizon, AT&T and T-mobile. They all suck in my neighborhood. Out and about today, the reception has been good (T-mobile). My wifi connections have all been good. Using it as a phone, it's a little long maybe. I think this is one reason it has microphones all over the sides to try and pickup the users voice from different sized heads. I don't have enough experience with it yet to tell if it might be a little weak picking up my voice in conversations, but a conversation today made me wonder a bit.
I've disabled some apps, but not as many as I'd like to. I'm glad they allow you to disable much of the bloat. The Watch On service works well and as a remote it even works with my oddball rebadged Dish OTA tuner. That's only ever worked with it's own remote before, even learning remotes have refused to learn it. The DVD part of the remote has been a little wonky. I probably need to reprogram that .
No problems with my Ultra Sandisk uSD card. Yet. You can access it with the battery installed which is nice. You have to push it in further than it seemed to me at first for it to be fully inserted. That caused me a little confusion. It read a larger music list from the card instantly to my eyes. The volume range is better than my Galaxy Nexus for media playback, external speaker, and for the earpiece when used as a phone. The external speaker isn't bad really, at least not like the reviews led me to think. I don't have the exposure to the range of phones to compare against like the reviewers do, but for what I've experienced its' OK. It's easy to cover the speaker with your thumb while you're holding it, but that's easy to avoid.
I've done very little with the S pen. I've sort of enjoyed using it as just a stylus in the old Palm PDA style which I used for a number of years. My effort at handwriting recognition failed utterly, but I've probably got to learn the whole S pen environment anyway. I don't blame the Note 3 for that failure yet.
This is my first exposure to Touchwiz. There's a lot of bloat. I miss the total control of a rooted vanilla android installation. I miss the recent apps list and the menu button on screen. I think the menu button instead of the recent apps was a mistake in interface. The menu key should light up if there's a menu option so you know you have some more choices at least.
Signing in to my accounts for Dropbox and Evernote automatically gave me my Samsung bonuses. That was easy and nice.
I need to dig a little deeper to optimize my experience with the phone but I'm enjoying it.
My Spigen Crystal screen protectors came today. I haven't installed one yet to see how the touch and spen work with those.