You must be using some cheapo Memory Card on your expandable memory Smartphone in the past.

Anyway, I don't owned one, but I tested the demo, this is the best looking Note series. And as well, the display is gorgeous. Lauch the camera very quick as well.

For open gallery, there are a few factors that cause lag or delay....you cannot blame the phone and touchwiz... there will slightly delay if
a. You have A LOT of pictures
b. Your pictures saved at SD card

I notice that when in camera app, switch to gallery to preview photo that are just taken 13mp will delay..i believe it is because the photo size too big..if I reduce to 8mp, should be no delay..

Above is my experience when using note 3...sorry for non related answer

Same boat, lol!! I've been looking at the flagships to try and pick one. All have pros and cons.

One more consideration is that android 5.1 is expected to be out in Feb/March 2015... which is right around the time you can expect the next batch of flagship phones (running on 64bit CPU i.e. Qualcomm Snapdragon 810) to be announced and maybe released.

If you wait 3-4 months, you'll probably be able to get a phone with a 64bit processor, android 5.1 out of the box, and possibly 4GB ram

Nope.  blazing fast

I have the same thought before I bought note4.
So I benchmarked  with my friend's note3. It's been a year and going but only one time the phone lagged. Other than that he's still a happy boy with his note3 thus I bought note4 cause I'll expect the same to flagship samsungs.

My iPhone lasted me for 3 years until I switched to htc one for 1 year then now note4.

if u r already an android user,n4 should be perfectly fine for you. unless u switched from ios, cause a lot ios who switch to android complains that android lag this and that but to me its user prob more than device prob.

my advice. buy that n4 from her cheap. u win she wins.

Updated to the latest firmware yesterday. This morning have some Wifi Issue. Even it shows connected to wifi but my apps cant run it online... Wechat/Whatsapp hardly connected. 3g/LTE seems disconnected also. Need restart my phone only can it can function properly.

About phone reception on my Note 4 near Kepong Area(Desa Park & Villa Manja), and Setia Eco Park, I change my telco from U Mobile to Maxis One Plan, and problem solved. In my house, usually have no bar, now have 1 or 2 bars, random, which I can still pick up some calls.

After using the Note 4 for more than 2 months already, so far so good. Camera is definitely a PLUS+. Call quality is OK for me, sound quality, definitely better than Note 3 and comparing to Note 2, I prefer Note 4 still. Used SPen and SNote a lot for my work  SUPER USEFUL. Battery life, seems ok to me after comparing with my old Note 2 which already aged 2+. Charing speed is a bit too fast... Seems too hard to believe that is it really fully charged???? Battery life is up and down for me, due to leaving my phone unplug and use it out door a lot together with power bank. Last about 7-9 hours usage(10+ phone calls, Web Browsing, Camera, Supercell games & Messenging) Sometimes feels like the battery is bad, maybe bcoz of the updates?

I hate the aluminium frame. I got it since release, that time got no Spigen case, only cheapo case and Sammy 1, so decided to wait. Then, got micro scratches at aluminium frame, DANG. Now I'm using Spigen Neo Hybrid Case, 2 thumbs UP! 

I give Note 4 8.6/10. 

EXynos version...
SnapDragon version only if you're buying from SG.

Exynos is 64 bit, but Samsung locked it to 32 bit before releasing 5.0 (ive read somewhere but forgot where)
Mine is Exynos version and no issues so far, loving my phone
It's damn good, depending on each user as each user's needs are different from one another.
For me I don't have complaints about it, gaming is good, no overheat issue, no lag, nothing
Exynos or Snapdragon is up to personal preferences anyways...

Just my two cents