My feedback as below

The sun global battery (3000mAh), SOT for me 3-4.30 hours with 75-85% brightness. 3g on all the way.

Yeah i just got my phone today after 1 week at sc
they change my board 1.400 to 1.500 

huh? means ur phone got 1 year and 2 weeks warranty?

yup sds with 1.400 board
lucky full warranty.
yeah they told me my board is 1.400 also i check it before.
just now i check my board is 1.500.
i dont know what is problem exactly sds or board.

guys, need your help here
i just bought a fake china Galaxy S3 with a price of RM1050.
damn that guy cheat on me and switch off his phone.

inside it is running on JB 4.1.1 with playstore installed.
looks like original S3, the only difference is the welcoming screen when it boot up. the rest is almost 99& same as original. even the smoothness is also same.

now i am thinking is there any good thing i can do with this phone?

I bought online from Lazada.com.my and they have a 14 days exchange window. So if you guys think it is hardware I better exercise my right of exchange. Btw, I highly recommend this site. Reasonable prices, fast delivery, local Samsung warranty and an exchange window which even brick and mortar shops won't give you.

android 4.3 announcing next week, but still no news on 4.2.2 update for s3/note 2 zzzzzzzz

That time cannot revive so I send to CS mana tau when I get it back the CS insisted I rooted.

The warranty sticker has written "Phone rooted" so definitely can't go back to CS. Better think what phone to buy.
Deciding between S4, Sony or iPhone.  Scared S4 has the same issue as S3.

Thank you guys for the info and help. 

For those guys who think S3 performance is good gotta try out iPhone 5.  I am using iPhone 5 and compare to my wife S3, the S3 is so slow and laggy at times.  There are some benefits of the S3 like bigger screen and easy file transfer but overall the iPhone 5 is so much more smoother and stable and trouble free too.  Just my 2 cents.  My wife is feeling the hassle now of the unstable and sometimes slow and laggy performance of the S3 now.

Sometimes Android apps are crap, it's a fact of life, that leads to a laggy phone. My wife's S3 has been in use for almost 1 year and there is no lag because there are not many games and when the kids install games that cause lag it gets promptly booted off the phone.

There are far too many apps/games that are not properly done *cough* Viber/Go *cough* leading to poor battery life and lagginess.

Then again some people complain about 1s, 2s of lag, and there was a comparison that measured 4.3s vs 5.7s for startup or something like that.

I'm quite sure a factory reset with a curated app installation process will immediately cause the S3 to perform excellently.

And ipong has NO WIDGETS. Try using widgets and see if it lags or not. A screen full of widgets is also going to lag. Not an entirely valid comparison, and the underlying philosophies are completely different.

How do you wipe cache?

It is Samsung design issue lo, I now all times on my Whatsapp, Viber, Facebook, Wechat, Kakaotalk, and finally can use my favour browser - chrome without any issue in my Sony Xperia Z, no single slow down and no need restart phone for maintain stability and smoothness.

After using others brand Android smartphone, I just realise how bad Samsung did in stability, smoothness, optimization in android compare with others.

it's an AP set 

my AP tab can OTA easily too. 

so where do iget the update manually?

I said no issue, and still smooth and no hang.

Which part I mention on battery? I never care much about battery, not like you, you buy phone for struggling with battery usage all time.

err i think that's exactly what he's saying 

It is Samsung design issue lo, I now all times on my Whatsapp, Viber, Facebook, Wechat, Kakaotalk, and finally can use my favour browser - chrome without any issue in my Sony Xperia Z, no single slow down and no need restart phone for maintain stability and smoothness.

After using others brand Android smartphone, I just realise how bad Samsung did in stability, smoothness, optimization in android compare with others.

yea i mistook him for nokia6280 
that and + he didn't mention about battery

Different ppl have different definition on smoothness.
Maybe we feel it already smooth but not for him. Like I said..different ppl have different usage and apps inside their phone.
There's no point to argue on the definition of smoothness here..lolz